Editing Octane rating (section)

==Regional variations==
{{More citations needed section|date=June 2024}}

The selection of octane ratings available at filling stations can vary greatly between countries.
* Australia: "regular" [[unleaded]] fuel is 91&nbsp;RON, "premium" unleaded with 95&nbsp;RON is widely available, and 98&nbsp;RON fuel is also very common. Shell used to sell 100&nbsp;RON fuel (5% ethanol content) from a small number of service stations, most of which are located in major cities (stopped in August 2008). [[United Petroleum]] used to sell 100 RON unleaded fuel (10% ethanol content) at a small number of its service stations (originally only two, but then expanded to 67 outlets nationwide) (stopped in September 2014).<ref>{{cite web |url=http://www.unitedpetroleum.com.au/index.asp?pgID=65 |title=Premium 100 |access-date=2010-09-01 |url-status=dead |archive-url=https://web.archive.org/web/20100830065746/http://www.unitedpetroleum.com.au/index.asp?pgID=65 |archive-date=2010-08-30 }}</ref><ref>{{cite web |url=http://www.unitedpetroleum.com.au/distributor-premium100-locations.asp |title=About United Petroleum |access-date=2010-09-01 |url-status=dead |archive-url=https://web.archive.org/web/20100902062128/http://www.unitedpetroleum.com.au/distributor-premium100-locations.asp |archive-date=2010-09-02 }}</ref> All fuel in Australia is unleaded except for some aviation fuels. E85 unleaded fuel is also available at several United service stations across the country.<ref>{{cite web |url=http://www.unitedpetroleum.com.au/united/fuel/ethanol-85 |title=Ethanol 85 |website=Unitedpetroleum.com.au |access-date=2017-01-06 |url-status=dead |archive-url=https://web.archive.org/web/20161223102114/http://www.unitedpetroleum.com.au/united/fuel/ethanol-85 |archive-date=2016-12-23 }}</ref> By 2018, E10 fuel had become quite common,<ref name="Roberts">{{Cite news|url=https://www.abc.net.au/news/2018-07-04/e10-cheapest-petrol-fuel-emissions-biofuels-ethanol-australia/9922938|title=Why E10 petrol may not be driving your car, or your dollar, further|last=Roberts|first=Natalie|date=2018-07-04|website=ABC News|language=en-AU|access-date=2019-07-26}}</ref> and is available at almost every major fuel station, except in Western Australia.
* Bahrain: 91 and 95 (RON), standard in all gasoline stations in the country and advertised as (Jayyid) for Regular or 91 and (Mumtaz) for Premium or 95 and 98 (RON) as super.
* Bangladesh: Two types of fuel are available at petrol stations in Bangladesh. Motor Gasoline Regular (marketed as "Petrol") which has RON 80 rating, and Motor Gasoline Premium (marketed as "Octane") which has RON 95 rating.<ref>{{Cite news|url=http://pocl.gov.bd/?page_id=951|title=Product Specification – Petroleum|work=Padma Oil Company Limited|access-date=2018-03-06|language=en-US}}</ref> Petrol stations in Bangladesh are privatised, but the prices are regulated by the authorities and have a fixed price at BDT 86.00 (US$1.04) and BDT 89.00 (US$1.07) (as of 1 March 2018) per litre respectively.<ref>{{cite web|url=http://www.bpc.gov.bd/contactus.php?id=39|title=Petroleum Local Price|website=www.bpc.gov.bd|language=en|access-date=2018-03-06}}</ref>
* Botswana: 93 and 95 RON are standard at almost all gas stations thorough Botswana. The two types are unleaded.
* Brazil: As defined by federal law, the RON standard is used and all types of gasoline sold in all gas stations throughout the country are unleaded (the latter since 1991). By default, it was defined by the federal government that the regular (and the lowest) octane standard in Brazil is 93 RON, known in Portuguese as ''Gasolina Comum'' (English: "Common Gasoline") – [[Petrobras]] stations brand it as ''Gasolina Regular'' (English: "Regular Gasoline").<ref name=petrobras/> This type of gasoline can be found in most Brazilian petrol stations and does not have any additives, except the inclusion of 27,5% of ethanol (as required by the [[National Agency of Petroleum, Natural Gas and Biofuels (Brazil)|Brazilian National Agency of Petroleum, Natural Gas and Biofuels]] – Portuguese: ''Agência Nacional do Petróleo, Gás Natural e Biocombustíveis'' or simply ''ANP'' – since 2011).<ref name=senado>{{cite web|url=http://www.senado.gov.br/atividade/materia/detalhes.asp?p_cod_mate=100053|title=MEDIDA PROVISÓRIA nº 532, de 2011|work=senado.gov.br|url-status=live|archive-url=https://web.archive.org/web/20110919030421/http://www.senado.gov.br/atividade/materia/detalhes.asp?p_cod_mate=100053|archive-date=19 September 2011|df=dmy-all}}</ref> Along with the "Common" gasoline, there is a second type of gasoline that can also be found in most stations in Brazil. This gasoline is also mixed with 27,5% of ethanol (to comply with the ANP regulation, that prohibits the sale of the 100% "pure gasoline" compound in all Brazilian stations),<ref name=senado/> but a few detergent and dispersant additives are also included in the compound. This type of gasoline is known in Portuguese as ''Gasolina Aditivada'' (English: "Additived Gasoline") – Petrobras stations brand it as "Petrobras Grid";<ref name=petrobras/> nevertheless, the octane rating is also 93 RON (these additives are used to improve the performance and efficiency of the engine, but they are not indicative of a higher octane rating). However, higher octane levels of gasoline are found in many stations (all stations in Brazil, regardless of the octane rating, have to conform the ANP requirement of 27,5% of ethanol mixed with the gasoline,<ref name=senado/> and both "Common" and "Additived" gasolines can also be found in most of these stations), such as the "Premium Gasoline"<ref name=petrobras/> (known in Portuguese as ''Gasolina Premium'' – 98 RON), the "OctaPro" (103 RON), sold at [[Ipiranga (company)|Ipiranga]] stations, and the "Petrobras Podium"<ref name=petrobras/> (102 RON), sold at Petrobras stations.
* Canada: in Canada octane rating is displayed in AKI. In most areas, the standard grades are 87 (regular), 89 (mid-grade) and 91–94 (premium) AKI. In the [[Atlantic Canada|Atlantic Provinces]], gasoline is often available without any blend of ethanol, but only up to 91 AKI.<ref>{{Cite news|url=https://www.theglobeandmail.com/globe-drive/culture/commentary/the-problem-with-ethanol-in-gasoline/article29103634/|title = The problem with ethanol in gasoline|newspaper = The Globe and Mail|date = 22 March 2016|last1 = Russell|first1 = Richard}}</ref>
* China: From January 1, 2000, all fuel stations offer unleaded fuel only. Now, 92 RON and 95 RON (previously 90 RON, 93 RON and 97 RON<ref name="icct-cn-5">{{cite web|title=China V gasoline and diesel fuel quality standards|url=http://www.theicct.org/sites/default/files/publications/ICCTupdate_ChinaVfuelquality_jan2014.pdf|publisher=International Council on Clean Transportation|access-date=7 February 2016|url-status=live|archive-url=https://web.archive.org/web/20150927064315/http://www.theicct.org/sites/default/files/publications/ICCTupdate_ChinaVfuelquality_jan2014.pdf|archive-date=27 September 2015}}</ref>) are commonly offered. Some state-run gas stations (Sinopec, PetroChina) in various cities sell 98 RON, but not all. Private gas stations outside of China's Shandong province rarely offer 98 RON. In most rural areas it can be difficult to find fuel with over 95 RON. In backward provinces and regions, only ethanol gasoline containing 10% ethanol is allowed to be sold: 92E10, 95E10 and 98E10, Some gas pumps use the labels "E92, E95 and E98", but they still represent E10 ethanol gasoline of 92 RON, 95 RON and 98 RON. Sinopec's 98 RON gasoline is called "X-power", and PetroChina's 98 RON gasoline is called "CN98". China's National VI gasoline standard has completely banned the use of metal anti-knock agents, because metal anti-knock agents such as MMT and ferrocene will clog the car's GPF, but gasoline vehicles that meet the National VI emission standards must install GPF.
* Chile: 93, 95 and 97 RON are standard at almost all gas stations thorough Chile. The three types are unleaded.
* Colombia: "Ecopetrol", Colombia's monopoly of refining and distribution of gasoline establishes a minimum AKI of 81 octanes for "Corriente" gasoline<ref name="ReferenceA"/> and minimum AKI of 87 octanes for "Extra" gasoline.<ref name="ReferenceC"/> (91.5 RON corriente,<ref name="ecopetrol.com.co"/> and 95 RON for extra<ref name="ReferenceB"/>)
* Costa Rica: RECOPE, Costa Rica's distribution monopoly, establishes the following ratings: Plus 91 (at least 91 RON) and Super (at least 95 RON).<ref>{{cite web |url=https://www.recope.go.cr/wp-content/uploads/2013/07/Manual_Productos.pdf |title=Manual de Productis |date=2011 |website=Recope.go.cr |access-date=2017-01-06 |url-status=live |archive-url=https://web.archive.org/web/20170107010050/https://www.recope.go.cr/wp-content/uploads/2013/07/Manual_Productos.pdf |archive-date=2017-01-07 }}</ref>
* Croatia: All fuel stations offer unleaded "Eurosuper BS" (abbreviation "BS" meaning "no sulfur content") 95 RON fuel, many also offer "Eurosuper Plus BS" 98 RON.<ref>{{cite web|url=http://www.ina.hr/default.aspx?id=204|title=INA d.d.|work=ina.hr|url-status=live|archive-url=https://web.archive.org/web/20140222140334/http://www.ina.hr/default.aspx?id=204|archive-date=2014-02-22}}</ref><ref>{{cite web|url=http://www.lukoil.hr|title=Lukoil Hrvatska|work=lukoil.hr|url-status=live|archive-url=https://web.archive.org/web/20140218080333/http://www.lukoil.hr/|archive-date=2014-02-18}}</ref> Some companies offer 100 RON fuel instead of 98.<ref>{{cite web|url=http://www.crodux-derivati.hr/cijene-goriva/|title=Crodux derivati|work=crodux-derivati.hr|url-status=dead|archive-url=https://web.archive.org/web/20140221074851/http://crodux-derivati.hr/cijene-goriva/|archive-date=2014-02-21}}</ref>
* Cyprus: All fuel stations offer unleaded 95 and 98 RON, and a few offer 100 RON as well.
* Denmark: 95 RON is a common budget choice, with 95 and 98 being widely available, and 92 rarely seen as it has been phased out during the 2010s. A selection of brands offers >=100 options, under trademarked names. However several fuel stations are phasing out 92 RON. By law, it is decided that all gasoline companies from July 2010 to January 2020 should use a mix containing 5% bioethanol in the gasoline and increased to 10% after January 2020.<ref>{{cite web|url=https://www.drivkraftdanmark.dk/viden/e10/|title=Din benzin hedder nu E10}}</ref>
* Ecuador: "Extra" and Ecopais (5% etanol) with 85 RON, "Eco Plus" with 89 RON and "Super Premium" with 95 (RON). Extra/Ecopais and Super Premium are available in all fuel stations. "Extra" is the most commonly used. All fuels are unleaded.<ref>{{cite web |url=http://www.arch.gob.ec/index.php/descargas/leyes-y-reglamentos/doc_download/292-norma-inen-935-2012.html |title=Gasoline requirements |publisher=Instituto Ecuatoriano de Normalizacion |location=Ecuador |language=Spanish |access-date=2012-06-21 |url-status=dead |archive-url=https://web.archive.org/web/20160304070707/http://www.arch.gob.ec/index.php/descargas/leyes-y-reglamentos/doc_download/292-norma-inen-935-2012.html |archive-date=2016-03-04 }}</ref><ref>{{Cite web |title=BNamericas – EP Petroecuador comercializará en el mercado... |url=https://www.bnamericas.com/es/noticias/ep-petroecuador-comercializara-en-el-mercado-interno-dos-nuevas-gasolinas-de-mejor-calidad-eco-plus-de-89-octanos-y-super-premium-de-95-octanos |access-date=2023-07-19 |website=BNamericas.com |language=es}}</ref>
* Egypt: Egyptian fuel stations had 90 RON until July 2014 when the government found no remaining use for it, leaving only 92 RON and 95 RON. 80 RON is found in a very limited number of fuel stations as they are used only for extremely old cars that cannot cope with high octane fuel. 95 RON was used limitedly due to its high price (more than twice the price of 92 RON).<ref>{{cite web|url=https://www.bbc.co.uk/arabic/middleeast/2014/07/140704_egypt_fuel_prices|title=الحكومة المصرية ترفع أسعار الوقود بنسبة تقترب من الضعف|work=[[BBC Arabic]]|date=5 July 2014|url-status=live|archive-url=https://web.archive.org/web/20141201103611/http://www.bbc.co.uk/arabic/middleeast/2014/07/140704_egypt_fuel_prices|archive-date=2014-12-01}}</ref> But after the increasing the prices again in 2018,<ref>{{cite web|url=https://www.skynewsarabia.com/business/1056999-%D8%A7%D9%84%D8%AD%D9%83%D9%88%D9%85%D8%A9-%D8%A7%D9%84%D9%85%D8%B5%D8%B1%D9%8A%D8%A9-%D8%AA%D8%B1%D9%81%D8%B9-%D8%A7%D9%94%D8%B3%D8%B9%D8%A7%D8%B1-%D8%A7%D9%84%D9%88%D9%82%D9%88%D8%AF|title=الحكومة المصرية ترفع أسعار الوقود|work=Sky News Arabic}}</ref> 95 RON price became only 15% higher than 92 RON, so it started to gain popularity.
* Estonia: 95 RON and 98 RON are widely available. E85 (bioethanol) gasoline found in very few gas stations.
* Finland: 95 and 98 (RON), advertised as such, at almost all gas stations. Most cars run on 95, but 98 is available for vehicles that need higher octane fuel, or older models containing parts easily damaged by high ethanol content. Shell offers V-Power, advertised as "over 99 octane", instead of 98. In the beginning of 2011 95&nbsp;RON was replaced by 95E10 containing 10% ethanol, and 98&nbsp;RON by 98E5, containing 5% ethanol. ST1 also offers RE85 on some stations, which is 85% ethanol made from [[biodegradable waste]] (from which the advertised name "ReFuel" comes). RE85 is only suitable for [[flexifuel]] cars that can run on high-percentage ethanol.<ref>{{cite web |url=http://www.vtt.fi/news/2009/03312009b.jsp |title=VTT Technical Research Centre of Finland – Business from technology |access-date=2012-04-13 |url-status=dead |archive-url=https://web.archive.org/web/20120308020531/http://www.vtt.fi/news/2009/03312009b.jsp |archive-date=2012-03-08 }}</ref>
* Germany: "Super E5 and E10" 95&nbsp;RON and "Super Plus E5" 98&nbsp;RON are available practically everywhere. Big suppliers such as [[Shell plc|Shell]] or [[Aral AG|Aral]] offer 100&nbsp;RON gasoline ([[Shell V-Power]], Aral Ultimate) at almost every fuel station. "Normal" 91&nbsp;RON is only rarely offered because lower production amounts make it more expensive than "Super" 95&nbsp;RON. Due to a new European Union law, gas stations are being required to offer a minimum rate of the new mixture of "Super" 95 RON with up to 10% ethanol branded as "Super E10".{{Citation needed|reason=this needs a reliable source or reference to the law. This claim may no longer be factual given that the EU is backing away from ethanol use. Also, does the law dictate the branding name, or is that just the chosen name for a product mandated by law?|date=March 2013}}
* Greece (Hellas): 95 RON (standard unleaded), 98 & 100 RON unleaded offered by some companies (e.g., EKO, Shell, BP).
* Hong Kong: only 98&nbsp;RON is available in the market. There have been calls to re-introduce 95&nbsp;RON, but the calls have been rejected by all automotive fuel station chains, citing that 95&nbsp;RON was phased out because of market forces.
* India: India's ordinary and premium petrol options are of 91 RON. The premium petrols are generally ordinary fuels with additives, that do not really change the octane value. Two variants, "Speed 93" and "Speed 97", were launched, with RON values of 93 and 97. In 2017, Hindustan Petroleum launched poWer 99 with an RON value of 99 which was initially available only in Bangalore, Pune and now in Mumbai but was expected to roll out in other major cities soon.<ref>{{Cite news|url=https://www.team-bhp.com/news/hindustan-petroleum-launches-99-octane-fuel-high-end-cars|title=Hindustan Petroleum Launches High Performance 99 Octane Fuel – NDTV CarAndBike|work=CarAndBike|access-date=2018-04-12|language=en}}</ref> India's economy-class vehicles usually have compression ratios under 10:1, thus enabling them to use lower-octane petrol without engine knocking.
* Indonesia: Indonesia's "Premium" gasoline, rated at 88 RON, was the lowest grade gasoline, but was phased out by 2021. Other options have been "Pertalite", rated at 90 RON; "Pertamax", rated at 92 RON; "Pertamax Plus", rated at 95 RON (now replaced by Pertamax Green in July 2023); and "Pertamax Racing", a 100 RON fuel sold in selected stations. From August 2016, [[Pertamina]] began selling "Pertamax Turbo", rated at 98 RON, as a replacement for Pertamax Plus. [[TotalEnergies|Total]] and [[Shell plc|Shell]] stations only sell RON 92 and 95 gasoline. Shell launched a new variant, "Regular", rated at 90 RON, in early 2018, but this was discontinued in January 2022. However, after 6 years of discontinuation of Pertamax Plus, In July 2023 Pertamina launched the Pertamax Green 95 which made of sugarcane and a mixture of Pertamax 92 and the price is slightly cheaper than Pertamax Turbo which rated 98 RON.
* Iran: 'regular' gasoline has an octane rating of 87 RON, which is the most prevalent type of gasoline available throughout the country. Select gas stations within major cities also offer 'Super' 95 RON. Due to high air pollution, an environmentally cleaner variety, marketed as Euro-4, is being introduced in metropolitan areas instead of the Regular, which boasts an octane rating of 91 RON and sulphur levels not exceeding 50 ppm.
* Ireland: 95&nbsp;RON "unleaded" is the only gasoline type available through stations, although E5 (99&nbsp;RON) is becoming more commonplace.
* Italy: 95&nbsp;RON is the only compulsory gasoline offered (''verde'', "green"), only a few fuel stations (Agip, IP, IES, OMV) offer 98&nbsp;RON as the premium type, many Shell and Tamoil stations close to the cities offer also V-Power Gasoline rated at 100&nbsp;RON. Recently Agip introduced "Blu Super+", a 100 RON gasoline.
* Israel: 95&nbsp;RON & 98&nbsp;RON are normally available at most automotive fuel stations. 96&nbsp;RON is no longer available as of 2010. 95&nbsp;RON is preferred because it is cheaper and performance differences are not significant. "Regular" fuel is 95&nbsp;RON. All variants are unleaded.
* Japan: "Regular" unleaded fuel is 90&nbsp;RON and "High-octane" ("Premium") fuel is about 100&nbsp;RON,<ref>{{cite conference|url=https://www.meti.go.jp/committee/materials/downloadfiles/g60421a06-1j.pdf|title=資料5-1 オクタン価について(補足説明資料)|conference=総合資源エネルギー調査会石油分科会 石油政策小委員会|conference-url=https://warp.ndl.go.jp/info:ndljp/pid/9919854/www.meti.go.jp/committee//gizi_8/12.html|date=April 2006|publisher=Agency for Natural Resources and Energy, Ministry of Economy, Trade and Industry.|url-status=dead|archive-url=https://warp.ndl.go.jp/info:ndljp/pid/10992692/www.meti.go.jp/committee/materials/downloadfiles/g60421a06-1j.pdf|archive-date=2010-04-01}}</ref><ref>{{Cite journal|url=https://doi.org/10.20619/jcombsj.54.170_217 |author=金子タカシ |title=オクタン価とガソリン品質設計 |journal=日本燃焼学会誌 |year=2012 |volume=54 |issue=170 |pages=217–220 |doi=10.20619/jcombsj.54.170_217}}</ref><ref>{{cite web|url=https://www.idss.co.jp/contact/idemitsu/index.html#anchor07|title=出光ブランドの商品・サービスについてのお問い合わせ|publisher=Idemitsu Kosan Co. |archive-url=https://web.archive.org/web/20210301131407/https://www.idss.co.jp/contact/idemitsu/index.html#anchor07|archive-date=2021-03-01}}</ref> or in fact 99.5&nbsp;RON according to some suppliers,<ref>{{cite web|url=https://www.eneos.co.jp/faq/gasoline/|title=よくあるご質問 ガソリン・燃料油|publisher=Eneos Corporation|archive-url=https://web.archive.org/web/20201101150736/https://www.eneos.co.jp/faq/gasoline/|archive-date=2020-11-01}}</ref><ref>{{cite web|url=https://com.cosmo-oil.co.jp/faq/answer1.html#gas01|title=サービスステーションFAQ(よくあるご質問)|publisher=Cosmo Oil Marketing Co. |archive-url=https://web.archive.org/web/20210918044050/https://com.cosmo-oil.co.jp/faq/answer1.html#gas01|archive-date=2021-09-18}}</ref> at least until around 2021. The minimum values are defined in standard [[Japanese Industrial Standards|JIS]] K 2202: "Regular" is >=89.0&nbsp;RON, and "High-octane" is >=96.0&nbsp;RON, since the revision of 1986. It means "High-octane" has a higher octane rating than the JIS standard. Although 99.5&nbsp;RON is not defined, there is no significant difference in "High-octane" from different suppliers according to the president of the Petroleum Association of Japan,<ref>{{cite news |title=ハイオク「レギュラーと同じ汎用品」 石油連盟会長「品質に差ない」 混合出荷 |newspaper=毎日新聞 |date= 2020-07-17 |url=https://mainichi.jp/articles/20200717/k00/00m/020/222000c }}</ref> and it is believed that each has almost the same octane rating (99.5&nbsp;RON) in spite of the JIS. But the actual octane rating is not clear and it can be sold as "High-octane" as long as it is 96.0&nbsp;RON or more. "High-octane" was formerly sometimes advertised as "Octane 100", but this practice was abandoned as its actual octane value was less than 100&nbsp;RON.<ref>{{cite news |title=キグナス、ハイオクを「オクタン価100」と虚偽の宣伝 指摘受けHP修正 |newspaper=毎日新聞 |date=2020-06-29 |url=https://mainichi.jp/articles/20200629/k00/00m/040/147000c }}</ref><ref>{{citation |title=弊社ハイオクガソリンに関する報道について |publisher=KYGNUS SEKIYU K.K. |date=2020-07-01 |url=https://kygnus.jp/pdf/release200701.pdf }}</ref>
* Latvia: 95 RON and 98 RON are widely available.
* Lebanon: 95 RON and 98 RON are widely available.
* Lithuania: 95 RON and 98 RON are widely available. In some gas stations E85 (bioethanol) gasoline, 98E15 (15% of ethanol), 98E25 (25% of ethanol) are available.
* Malaysia: 95 RON, 97 RON and 100 RON. "Regular" unleaded fuel is 95&nbsp;RON; "Premium" fuel is rated at 97&nbsp;RON (Shell's V-Power Racing is rated minimum 97&nbsp;RON). Petron sells 100 RON in selected outlets.<ref>{{cite web |url=https://paultan.org/2010/09/28/not-all-fuels-are-the-same-we-dig-deeper-into-shell-v-power/ |title=Not all fuels are the same, we dig deeper into shell v power.}}</ref>
* Mexico: The standard octane index is 87 AKI for regular fuel and anywhere from 91 to 93 AKI for premium fuel, although 91 AKI is the most common octane number for premium fuel. [[Valero Energy|Valero]] is the only station offering 93 AKI fuel in Mexico, at a premium{{clarify|what is a premium?|date=June 2022}} of 5% to 10% over standard 91 AKI fuel. Valero stations are usually present in main cities, such as [[Monterrey]], [[Guadalajara]], [[Querétaro]] and [[Puebla]]. From 1938 to 2018, Mexican government held a monopoly in the distribution of fuel, and its brands for unleaded fuel were "Pemex Magna" and "Pemex Premium", appearing in the early 1990s, before that, fuel was usually leaded. Mexican regulations do not enforce any particular labels to identify different grades of fuel as long as each grade is clearly labeled with distinct names and colors,<ref>{{cite web|url=http://dof.gob.mx/nota_detalle.php?codigo=5241707&fecha=30/03/2012|title=DOF – Diario Oficial de la Federación}}</ref> but the long history of Pemex's colors has established a tradition of labeling regular fuel with green, premium fuel with red, and diesel with black. Gas station brands that use different colors include [[Shell plc|Shell]], [[BP]], [[Mobil]] and Akron.
* Mongolia: 92 RON and 95 RON (advertised as A92 and A95 respectively) are available at nearly all stations while slightly fewer stations offer 80 RON (advertised as A80). 98 RON (advertised as A98) is available in select few stations.
* Montenegro: 95 RON is sold as a "regular" fuel. As a "premium" fuel, 98 RON is sold. Both variants are unleaded.
* Myanmar: Most petrol stations carry 92 RON as standard especially in rural areas. Most larger cities and highway stations have introduced 95 RON in the past few years. The highest grade available is 97 RON which is only sold by a few stations in Yangon and Nay Pyi Taw (e.g., PTT, MMTM, Petrotrans).
* Netherlands: 95&nbsp;RON "Euro" is sold at every station, whereas 98&nbsp;RON "Super Plus" is being phased out in favor of "premium" fuels, which are all 95 RON fuels with extra additives. Shell V-Power is a 97&nbsp;RON (labelled as 95 due to the legalities of only using 95 or 98 labelling), some independent tests have shown that one year after introduction{{when|date=August 2013}} it was downgraded to 95 RON,{{Citation needed|date=August 2013}} whereas in neighboring Germany Shell V-Power consists of the regular 100&nbsp;RON fuel.
* New Zealand: 91&nbsp;RON "Regular" and 95&nbsp;RON "Premium" are both widely available. 98&nbsp;RON is available instead of 95&nbsp;RON at some (BP, Mobil, Gull) service stations in larger urban areas (newer BP stations also offer 95 by blending 91 and 98 where 98 is available). 100 RON is available at selected NPD service stations in the South Island and in very limited locations in the North Island.<ref>{{cite web |url=https://npd.co.nz/100plus-high-octane-petrol/ |title=100 Plus high octane petrol |website=npd.co.nz |access-date=2018-01-14}}</ref>
* Norway: 95 RON are widely available, but 98 RON is also available at Shell, here it goes under the name v-power; it is 10-20% more expensive as 95 RON fuel. In 2023 95 RON fuel got change to 95E10 and 98 RON to 98E5. SHELL still has 98 octane under the name v-power, but also most of the Esso gas stations have 98 octane fuel as well.<ref>{{cite web |url=http://www.altaposten.no/lokalt/nyheter/article9516487.ece |title=Tømmer tanken for 98 oktan |website=Altaposten.no |date=2014-04-15 |access-date=2017-01-06 |url-status=live |archive-url=https://web.archive.org/web/20170407090426/http://www.altaposten.no/lokalt/nyheter/article9516487.ece |archive-date=2017-04-07 }}</ref>
* Oman: 91 RON, 95 RON and 98 RON. "Regular" unleaded fuel is 91&nbsp;RON; "Premium" fuel is rated at 95&nbsp;RON; 98 RON in selected outlets.
* Pakistan: 3 types of fuel available. 92, HOBC 95 & HOBC 97 RON. Super marketed as 92 RON, 95 RON marketed by Shell as V-Power and 97 RON by Total Parco Pakistan & Pakistan State Oil (PSO). HOBC pricing was deregulated in October, 2016.
* Philippines: All automotive fuels are unleaded since December 23, 2000.<ref>"Leaded Gasoline Finally Phased Out", Philippine Star, January 1, 2001.</ref> Since late 2013, three grades of gasoline are available: Premium Plus, Premium (mid-grade) and Regular. Law requires the Premium Plus grade to be 97 RON or higher; Premium at 95 RON; Regular at 91 RON.<ref>Department of Energy Department Circular No. DC2013-09-0021, September 19, 2013.</ref> Premium Plus grade fuels are exempted from having an ethanol blend,<ref>Republic Act No. 9367, "Biofuels Act of 2006", passed on January 12, 2007.</ref> although the only Premium Plus grade available without ethanol is [[Petron Corporation|Petron]] Blaze and is rated at 100 RON. Other Premium Plus grades like Seaoil Extreme 97, Shell V-Power Racing and Unioil Gas 97 are rated at 97 RON, while Phoenix Premium 98 is rated at 98 RON. Premium grades such as Caltex Gold, Petron XCS, Phoenix Premium 95, Seaoil Extreme 95, Shell V-Power Nitro+, Unioil Gas 95 and Total Excellium are rated at 95 RON. Regular grades such as Caltex Silver, Petron Xtra Unleaded, Phoenix Super Regular 91, Seaoil Extreme U+, Shell FuelSave Unleaded, Unioil Gas 91 and Total Premier are rated at 91 RON.
* Poland: Eurosuper 95 (RON 95) is sold in every gas station. Super Plus 98 (RON 98) is available in most stations, sometimes under brand (Orlen – Verva, BP – Ultimate, Shell – V-Power) and usually containing additives. Shell offers V-Power Racing fuel which is rated RON 100.
* Portugal: 95 RON "Euro" is sold in every station and 98 RON "Super" being offered in almost every station.
* Russia: In the [[Soviet Union]] there were different grades of automobile gasoline, which had the following names: A-56, A-66, A-70, A-72, A-74, A-76, AI-93, AI-95 also known as "Extra", and B-70 (aviation gasoline). The first letter indicated the vehicle for which the gasoline was intended, the number indicated the octane. Gasolines A-56 and A-66, A-70, and later A-72, were intended for cars with flat-head engines produced in the 1930s-1960s. Gasolines A-74, later A-76 and AI-93 for cars with overhead valve engines produced in the 1960s-1980s. AI-95 gasoline was mainly for foreign cars or government limousines [[ZiL]] and [[GAZ Chaika|Chaika]]. The letter "I" in the AI-93 and AI-95 brands indicated that the octane number was calculated using the research method. After the [[Dissolution of the Soviet Union|dissolution]] of the Soviet Union in the 1990s, A-76 gasoline was replaced by AI-80, and AI-93 by AI-92. By the early 1980s, production of A-66 gasoline ceased, and about a decade later, so did A-72. Nowadays 92&nbsp;RON is the minimum available, the standard is 95&nbsp;RON is sold in every gas station. 98&nbsp;RON is available in most stations. As a "premium" fuel, 100 RON is sold, [[Gazpromneft]] and [[Lukoil]] both variants are unleaded.
* Saudi Arabia: Two types of fuel are available at all petrol stations in Saudi Arabia. "Premium 91" (RON 91) has green pumps, and "Super Premium 95" (RON 95) where the pumps are red. [[Fuel dyes]] are used to make the colour of the fuel match that of the pump. While petrol stations in Saudi Arabia are privatised, the prices are regulated by the authorities and have a fixed at [[Saudi riyal|SR]] 1.44 (US$0.38) and SR 2.10 (US$0.56) (as of 14 April 2019) per litre respectively; and is currently being increased at a quarterly rate to bring it up to the worldwide average by 2020. Prior to 2006, only Super Premium RON 95 was available and the pumps were not systematically coloured. The public did not know what octane rating was, so education campaigns were started, advising people to use "red petrol" only for high end cars, and to save money by using "green petrol" for regular cars and trucks.
* Singapore: All four providers, [[Caltex]], [[ExxonMobil]], [[Singapore Petroleum Company|SPC]] and [[Shell plc|Shell]] have 3 grades of gasoline. Typically, these are 92, 95, and 98 RON. However, since 2009, Shell has removed 92 RON.
* South Africa: "regular" unleaded fuel is 95 RON in coastal areas. Inland (higher elevation) "regular" unleaded fuel is 93 RON; once again most fuel stations optionally offer 95 RON.
* South Korea: "regular" unleaded fuel is 91~94 RON, "premium" is 95+ RON nationally. However, not all gas stations carry "premium."
* Spain: 95 RON "Euro" is sold in every station with 98 RON "Super" being offered in most stations. Many stations around cities and highways offer other high-octane "premium" brands.
* Sri Lanka: Sri Lanka switched their regular gasoline from 90 RON to 92 RON on January 1, 2014. In Ceypetco filling stations, 92 RON is the regular automotive fuel and 95 RON is called 'Super Petrol',<ref>{{cite web|url=http://www.ceypetco.gov.lk/Ceypetco_Products.htm|title=Ceylon Petroleum Corporation|work=ceypetco.gov.lk|url-status=dead|archive-url=https://web.archive.org/web/20140531180434/http://ceypetco.gov.lk/Ceypetco_Products.htm|archive-date=2014-05-31}}</ref> which comes at a premium price. In LIOC filling stations, 92 RON is the regular automotive fuel and 95 RON is available as 'Premium Petrol'. As of 2022, LIOC fillings stations offer a new fuel labelled as 'XtraPremium' Petrol which is marketed as 'Euro 3' standard petrol. Similarly 95 RON petrol is offered as 'XtraPremium' 95 Petrol. Sri Lanka adopted RON 100 Octane 100 from July 2024. It is the 8th country in the world to use RON 100.
* 
* Sweden: 95 RON, 98 RON and E85 are widely available.
* Taiwan: 92 RON, 95 RON and 98 RON are widely available at gas stations in Taiwan.
* Thailand: 95 RON E0, 95 RON E10, 91 RON E10, 95 RON E20 are widely available in all parts of Thailand. 97 RON E10 fuel is also available in some Bangchak's filling stations in many parts of Thailand.
* Trinidad and Tobago: 92 RON (Super) and 95 RON (Premium) are widely available.
* Turkey: 95 RON and 95+ RON widely available in gas stations. 91 RON (Regular) has been dropped in 2006. 98 and 100 RON (Shell V-Power Racing) has been dropped in late 2009. The Gas which has been advertised 97 RON has been dropped in 2014 and renamed 95+.
* Ukraine: 80 RON and 98 RON gasoline is available. The standard gasoline is 95 RON, but 92 RON gasoline is also widely available and popular for older cars. There is no government regulation for gasoline with RON higher than 98 so some stations are marketing 100 RON gasoline when in reality this can be anything above 98 RON with extra cleaning additives.
* United Kingdom: 'regular' gasoline has an octane rating of 95 RON, with 97 RON fuel being widely available as the ''Super Unleaded''. [[Tesco]] and [[Shell plc|Shell]] both offer 99 RON fuel. In April 2006, [[BP]] started a public trial of the super-high [[octane]] [[gasoline]] ''BP Ultimate Unleaded 102'', which as the name suggests, has an octane rating of 102 RON.<ref>{{cite web|url=http://www.bp.com/liveassets/bp_internet/bp_ultimate/STAGING/brand_assets/downloads_pdfs/pq/bp_ultimate_uk_102_final_press_release.pdf|title=BP|work=bp.com|url-status=dead|archive-url=https://web.archive.org/web/20101214104236/http://www.bp.com/liveassets/bp_internet/bp_ultimate/STAGING/brand_assets/downloads_pdfs/pq/bp_ultimate_uk_102_final_press_release.pdf|archive-date=2010-12-14}}</ref> Although BP Ultimate Unleaded (with an octane rating of 97 RON) and BP Ultimate Diesel are both widely available throughout the UK, BP Ultimate Unleaded 102 was available throughout the UK in only 10 filling stations, and was priced at about two and half times more than their 97 RON fuel. In March 2010, BP stopped sales of Ultimate Unleaded 102, citing the closure of their specialty fuels manufacturing facility.<ref name="bp.com"/> Shell V-Power is also available, but in a 99 RON octane rating, and [[Tesco]] fuel stations also supply the [[Greenergy]] produced 99 RON "Momentum<sup>99</sup>".
* United States: in the US octane rating is displayed in AKI. In most areas, the standard grades are 87, 89–90, and 91–94 AKI. In the Rocky Mountain (high elevation) states, 85 AKI (90 RON) is the minimum octane, and 91 AKI (95 RON) is the maximum octane available in fuel.<ref>{{cite web |url=http://www.aaa.com/aaa/006/EnCompass/2007/mar/mar_AutoTalk.htm |title=AAA Colorado ~ EnCompass Magazine – Online |access-date=2013-06-04 |url-status=dead |archive-url=https://web.archive.org/web/20140110154625/http://www.aaa.com/aaa/006/EnCompass/2007/mar/mar_AutoTalk.htm |archive-date=2014-01-10 }}</ref> The reason for this is that in higher-elevation areas, a typical [[naturally aspirated engine]] draws in less air mass per cycle because of the reduced density of the atmosphere. This directly translates to less fuel and reduced absolute compression in the cylinder, therefore deterring knock. It is safe to fill a carbureted car that normally takes 87 AKI fuel at sea level with 85 AKI fuel in the mountains, but at sea level the fuel may cause damage to the engine. [[fuel injection|Fuel injectors]] have almost completely replaced [[carburettor]]s in nearly all modern automobiles produced from the late 1980s and early 1990s onwards. 85 AKI fuel is not recommended for modern automobiles and may cause damage to the engine and decreased performance.<ref>{{cite news |last1=Phelan |first1=Mark |title=Vacationers, beware: Bad gas can damage your car |url=https://www.usatoday.com/story/money/cars/2013/05/29/bad-gasoline-low-octane-too-much-ethanol/2369579/ |work=USA TODAY |agency=Detroit Free Press |date=29 May 2013 }}</ref> Another disadvantage to this strategy is that most [[Turbocharger|turbocharged]] vehicles are unable to produce full power, even when using the "premium" 91 AKI fuel. In some east coast states, up to 94 AKI (99 or 100 RON) is available.<ref>{{cite web|url=http://www.sunocoinc.com/site/Consumer/RetailMarketing/Products.aspx|title=GoSunoco – Partner With Sunoco|author=Sunoco, Inc.|work=sunocoinc.com|url-status=dead|archive-url=https://web.archive.org/web/20070430173204/http://www.sunocoinc.com/site/Consumer/RetailMarketing/Products.aspx|archive-date=2007-04-30}}</ref> As of January 2011, over 40 states and a total of over 2500 stations offer [[ethanol]]-based [[E-85]] fuel with 94–96 AKI.<ref>{{cite web |url=http://www.e85refueling.com/ |title=E85 Refueling Location Search |access-date=2008-10-22 |url-status=dead |archive-url=https://web.archive.org/web/20081207175827/http://www.e85refueling.com/ |archive-date=2008-12-07 }}</ref> Often, filling stations near US racing tracks will offer higher octane levels such as 100 AKI from separate dedicated pumps.{{citation needed|date=October 2010}}
** State standard gasoline grades: [[U.S. State Fuel Octane Standards]]
* Venezuela: 91 RON and 95 RON gasoline is available nationwide, in all PDV gas stations. 95 RON gasoline is the most widely used in the country, although most cars in Venezuela would work with 91 RON gasoline. This is because gasoline prices are heavily subsidized by the government (US$0.0083 per gallon 95 RON, vs US$0.0061 per gallon 91 RON). All gasoline in Venezuela is unleaded.
* Vietnam: 92 RON is in every gas station and 95 RON is in the urban area. They start selling A92-E5 gasoline (92 RON with 5 percent of ethanol) at 2017. On January 1, 2018, Vietnamese government forced every gas station stop selling 92 RON and sell 95 RON + A92-E5 instead. From 2022, Vietnam will start selling gasoline according to Euro 5 standards, with the choices 95 RON and 97 RON(in SFC gas stations).
* Zimbabwe: 93 octane available with no other grades of fuels available, E10 which is an ethanol blend of fuel at 10% ethanol is available the octane rating however is still to be tested and confirmed but it is assumed that it is around 95 Octane. E85 available from 3 outlets with an octane rating AKI index of between 102 and 105 depending on the base gasoline the ethanol is blended with.