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Sunoco’s fuels have been associated with racing excellence. Since the mid-60s, when Sunoco and the Roger Penske Racing Team with Mark Donohue forged what would be a long and successful alliance, the company has grown into an industry powerhouse.

Today, Sunoco has expanded the reach of its racing fuels line around the world to include all types of professional motor sports and other activities where premium race fuels make a difference.

With its unsurpassed innovations and years of experience, it’s easy to understand why more and more engine builders, racers, tracks and sanctioning bodies choose Sunoco over all other racing gasoline combined.

Sunoco Fuels We Offer

Leaded Fuels

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Sunoco
EX02™​

Sunoco
Standard™

Sunoco
Supreme™

Sunoco
MO2X™

Sunoco
HRC Plus™

Sunoco
MaxNOS™

Unleaded Fuels

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Sunoco
Optima™​

Sunoco
Green E15™

Sunoco
260 GT™

Sunoco
MO2X™

Sunoco
260 GT Plus™

Sunoco
260 GTX™

Sunoco
E85R™

Race Fuels

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Sunoco
Maximal™​

Sunoco
SR18™

EX02

Sunoco EXO2 is a very highly oxygenated race fuel. EXO2’s high oxygen content – about three times as much as pump gas – can be beneficial in crate engines, two-barrel engines, and racing classes with cylinder head limitations, as well as engines running at higher elevations.

Due to its high oxygen content, Sunoco EXO2 requires a richer air/fuel mixture. Using EXO2 without proper air/fuel mixture changes can lean out your engine. Please consult the stoichiometric air/fuel ratio data in the Technical Details section below. Since non-oxygenated race fuels typically have a stoichiometric air/fuel ratio of 14.6:1 to 15.1:1, you may need to richen your fuel mixture by 10 to 15 percent when using EXO2 depending on the fuel you are currently using.

As with any gasoline, Sunoco EXO2 should be stored in opaque, tightly sealed containers and kept where temperatures are stable. Drum pumps should be removed immediately after use. Properly stored, the shelf life of Sunoco EXO2 is one to two years.

Note: EXO2’s octane values must be estimated because of the extreme oxygenation of this fuel. The (R+M)/2 octane value of 107 is a conservative estimate.

Standard

Sunoco® Standard™ is a 110 octane leaded race fuel that is used in many forms of motorsports.  Sunoco Standard is designed for compression ratios up to about 13:1 in conventional V8 engines with iron cylinder heads.  It can tolerate higher compression ratios in aluminum cylinder head applications or engines with smaller or more efficient combustion chambers.  While most racers use Sunoco Standard in naturally aspirated applications, it is also a good choice for mild nitrous, turbocharged, and supercharged applications.

Sunoco Standard features a comprehensive additive package to enhance shelf life by improving stability and minimizing oxidation.  It should be stored in opaque, tightly sealed containers and kept where temperatures are stable. Properly stored, the shelf life of Sunoco Standard is in excess of 2 years.

Supreme

Sunoco® Supreme™ is a 112 octane leaded race fuel designed for competition engines routinely operating over 7000 rpm.  Supreme has a high motor octane number and a fast burn speed to ensure engine protection lap after lap and pass after pass.  It is designed for compression ratios up to about 15:1 in small block V8 race engines and can withstand higher compression ratios in smaller or more efficient combustion chambers.  Supreme’s fast burn speed also makes it a popular choice for 2-stroke race engines.

Sunoco Supreme features a comprehensive additive package to enhance shelf life by improving storage stability and minimizing oxidation.  It should be stored in opaque, tightly sealed containers and kept where temperatures are stable.  Properly stored, the shelf life of Supreme is in excess of 2 years.

MO2X

Sunoco MO2X is an oxygenated racing fuel designed for excellent throttle response in high compression, high rpm 2- and 4-stroke applications such as motorcycles, all-terrain vehicles, snowmobiles, and karts. It complies with sanctioning body fuel rules limiting oxygen content to 2.8 weight %. MO2X does not have to be drained from the fuel system after each use.

Sunoco MO2X contains additives to enhance storage life. It is not a street legal fuel and is for off-road and racing use only. As with any gasoline, it should be stored in opaque sealed containers where temperatures are stable.

MaxNOS

Sunoco MaxNOS is the fuel of choice for extreme performance applications where “power adders” such as nitrous, superchargers, and turbochargers are utilized. Sunoco Race Fuels engineers added components to this fuel to be able to withstand ultra high pressure / high temperature combustion chamber conditions. MaxNOS was tested in a variety of drag racing applications ranging from mega-boost turbocharged small engines to multi-stage nitrous systems on mountain motors. It’s also a great fuel for supercharged pulling trucks.

Sunoco MaxNOS is for off-road and racing use only. It contains additives to enhance stability and minimize oxidative effects. As with any gasoline, MaxNOS should be stored in opaque, tightly sealed containers where temperatures are stable. Handled under such conditions, the shelf life of Sunoco MaxNOS is 3 years or more.

Optima

Looking for a great vehicle storage and small equipment fuel?

Look no further. With Sunoco Optima, you can run it in summer and store it in winter… all with one fuel!

Sunoco Optima is an unleaded fuel blended from highly-refined hydrocarbon blendstocks. Optima does not contain ethanol or MTBE and is oxygenate-free. Optima has excellent storage characteristics, making it ideal for storing vehicles and gasoline-powered equipment, especially those requiring an exceptionally stable unleaded fuel.

Optima is specially formulated to be easy on gaskets, o-rings, and other fuel system components. It also promotes quick mixing with 2-stroke oils in both air-cooled and water-cooled applications. Sunoco Optima is an excellent choice for gasoline-powered yard, farm, and industrial equipment and other small engine applications that may not be used on a regular basis. Gasoline stabilizers are not needed when using Sunoco Optima.

Sunoco Optima contains detergent additives for engine cleanliness as well as anti-oxidants and corrosion inhibitors to enhance storage life. Optima is not a street-legal fuel. However, it will not harm oxygen sensors or catalytic converters. When stored in air-tight, opaque fuel containers, the shelf life of Sunoco Optima is in excess of three years.

Green E15

Sunoco® Green E15™ is a highly oxygenated unleaded race fuel that contains 15 volume percent ethanol. Because it contains more oxygen than most fuels, fuel system changes may be needed to extract peak performance from Green E15.

Sunoco Green E15 contains a comprehensive additive package that helps keep fuel systems clean, enhances shelf life and reduces fuel system deposits. It should be stored in opaque, tightly sealed containers and kept where temperatures are stable. Properly stored, the shelf life of Sunoco Green E15 is in excess of 1 year.

260 GT

Sunoco 260 GT is a street-legal, oxygenated, unleaded gasoline designed for high performance street cars, muscle cars, classics, street rods, motorcycles, and the like. With a 100 octane rating, Sunoco 260 GT will allow increased boost levels in supercharged or turbocharged applications compared to lower octane “pump” gas.

Sunoco 260 GT will not harm catalytic converters or oxygen sensors. 260 GT contains a comprehensive additive package for greater engine protection and reduced fuel system deposits. It is compatible with two-stroke synthetic and mineral-based engine oils. 260 GT is safe for carbureted and fuel injected engines. As with any gasoline, it should be stored in opaque, tightly sealed containers and kept where temperatures are stable. Properly stored, the shelf life of 260 GT is in excess of 1 year.

260 GT is not street legal in California and other areas that requires fuel to comply with California Air  Resources Board regulations. If you need a fuel that is California Air Resource Board compliant (street legal in CA), you want SS 100.

260 GT Plus

Sunoco 260 GT Plus is a high octane, highly oxygenated unleaded race fuel.

Because 260 GT Plus contains more oxygen than is allowed in pump gas, it is for off-road and racing use only. However, it will not harm oxygen sensors. Due to its high oxygen content, an increase in fuel flow is required to utilize the full potential of 260 GT Plus compared to conventional non-oxygenated fuels.

Sunoco 260 GT Plus contains additives to enhance shelf life and promote engine cleanliness. As with any gasoline, it should be stored in opaque, tightly sealed containers and kept where temperatures are stable. Properly stored, the shelf life of 260 GT Plus is in excess of 1 year.

Note: exposure to sun light (ultraviolet light) can degrade the octane of this fuel and must be avoided. Contains octane boosting additive, MMT.

260 GTX

Sunoco® 260 GTX™ is an unleaded racing fuel that contains no oxygenates and no metallic additives. 260 GTX is a good fuel for many applications that need more detonation protection than typical street gas provides, yet cannot use a leaded fuel. It has been shown to produce repeatable power levels in small block V8 engines to 12:1 compression ratio, and will tolerate more compression in engines with smaller or more efficient combustion chambers. Turbocharged and supercharged race cars that require an unleaded fuel are good candidates for Sunoco 260 GTX.

260 GTX is not a street legal fuel and is for off-road and racing use only. However, it will not harm sensors such as oxygen sensors used in fuel injection systems. It is also an excellent choice where oxygenates such as alcohols and ethers are limited or banned by the race engine manufacturer or race sanctioning organization.

Sunoco 260 GTX contains additives to enhance shelf life and engine cleanliness. However, as with any gasoline, it should be stored in opaque, tightly sealed containers where the temperature is stable. Handled under such conditions, the shelf life of 260 GTX is in excess of 2 years.

E85R

Sunoco E85-R is an unleaded racing fuel containing 85 volume % ethanol. It can only be used in fuel systems designed specifically for E85 blends. Because it is highly oxygenated and requires increased fuel flow compared to conventional non-oxygenated fuels, consult with your fuel injection system or carburetor supplier for correct air/fuel ratio calibrations.

Sunoco E85-R is blended to consistently contain 85% ethanol. Conventional E85 can vary from about 51% to 83% ethanol or so but rarely contains 85% ethanol. Conventional E85 can also vary seasonally; the composition of Sunoco E85-R race fuel does not change. The non-ethanol portion of Sunoco E85-R is comprised of highly-refined race fuel hydrocarbons for stability and consistency. Sunoco E85-R is the racer’s fuel of choice where E85 fuels are allowed.

Sunoco E85-R does not contain metallic additives and will not harm oxygen sensors. It should be stored in dark, tightly sealed containers where the temperature is stable. Handled under such conditions, shelf life is in excess of 1 year. Check with your fuel system and fuel container manufacturers for compatibility with ethanol and E85 blends. Please note that due to the high oxygenation of E85-R, the octane values are estimated.

Note: the octane ratings for E85-R are estimates. The conventional ASTM laboratory octane tests cannot accommodate the high oxygen content of fuels like E85-R.

Maximal

Sunoco Maximal is a 116 octane extreme performance leaded racing fuel designed for high revving racing engines with high compression ratios. Maximal’s fast burn rate makes it particularly beneficial in large-bore, large-displacement naturally-aspirated drag racing applications. It has also proven to be very popular in the highly-stressed naturally-aspirated big blocks used in truck pulling. Sunoco Maximal is very resistant to vapor lock, ensuring consistent fuel metering between passes.

Sunoco Maximal is for off-road and racing use only. It contains additives to enhance stability and minimize oxidation. As with any gasoline, Maximal should be stored in opaque, tightly sealed containers where temperatures are stable. Handled under such conditions, the shelf life of Sunoco Maximal is 2 years or more.

SR18

Sunoco SR18 is our ultimate high octane, fast burning racing fuel. If you have a high compression, high RPM race engine, 118 octane Sunoco SR18 is your fuel of choice.

SR18 is an excellent choice for drag racing and truck pulling, especially large displacement applications. For oval course and road racing applications, SR18 will tolerate the high cylinder pressures in racing classes where there are no compression ratio limitations.

Sunoco SR18 is for off-road and racing use only. It contains additives to enhance stability and increase storage life. As with any gasoline, SR18 should be stored in opaque, tightly sealed containers where temperatures are stable. Handled under such conditions, the shelf life of Sunoco SR18 is 2 years or more.