About SUNOCO race fuels   

pricelist 2010

RTC (102 RON, 90 MON and 3.7% oxygen) - Unleaded

The RTC is specially formulated to provide maximum power for Turbo charged engines. It is designed to meet the current FIA regulation and developed with special anti-knock restistant chemicals from the Sunoco race fuel refinery to enable maximum boost and advance timing without detonation. The high oxygen content of 3.7% combined with special high octane power enhancing 'turbo' chemicals results in improved responsiveness, mid-range torque and power output. Already proven a winning fuel in racing and rally turbo engines. 

R SUR (99RON, 88MON and 1.8% oxygen) -Unleaded
 

The RSUR is formulated to be a higher quality and better performance alternative to regular Super Unleaded. It meets both BSEN228 and BS7800 and therefore meets the MSA pump fuel regulations. Its relatively high oxygen content increases burn speed and enhances the cleanliness of the burn. It has proved to be a success in Britcars and Britsports due to its excellent value for money to performance ratio.

SUNOCO 260GT PLUS (109RON, 99MON and 4.5% oxygen) - Unleaded

A fuel designed for the performance enthusiast who wants a highly oxygenated extremely high-octane unleaded and clean burning fuel. This is the control fuel for SCCA. It is suitable for racing purposes and high performance street vehicles, powerboats, jetskis, motorcycles etc. In fact, engines with compression ratios as high as 14 to 1 will benefit greatly from this powerful, clean and fast burning fuel. It is heavily oxygenated to improve engine breathing and power figures in engines with air fuel restrictors.
It blends with any pump fuel (for those who want to boost the octane of normal petrol) and provides great protection against knock (pinking or detonation). Suitable for pinto engines with small carburettors. Unleaded and contains ethanol as the oxygen carrier. Recent tests have shown that the Sunoco 260GT Plus gives awsome power in highly boosted turbo engines (Nissan Skylines drag cars etc).
Please note that due to the very extreme design of this high power fuel it is by nature very unstable. Make sure that you do not expose the fuel to direct sunlight and do not keep containers open. Do not leave fuel in the vehicle's tank for longer than 48 hours if it is not guaranteed airtight.

SUNOCO 260GT (105RON, 95MON and 3.5% oxygen) - Unleaded

A fuel designed for the performance enthusiast who wants a high-octane extremely clean burning fuel. This was the control fuel for Grand AM (Rolex Daytona 24 Hours) and ALMS until end of 2005 when some fuel cell manufactures had some problems with fuel bladders reacting with the ethanol content in the Sunoco 260 GT. From 1st of January 2006, Grand Am and ALMS have replaced the Sunoco 260GT with the Sunoco 260GTX which does not contain any oxygen (ethanol).
It does not conform to the BS 7800 (Super Unleaded) and BS EN228 (Premium Unleaded) due to the European regulations maximising oxygen to 2.7%. However, if the fuel is downblended with 25% of normal Super Unleaded or Premium Unleaded the maximum level of 2.7% will be achieved. It is suitable for racing purposes and high performance street vehicles, powerboats, jetskis, motorcycles etc. In fact, engines with compression ratios as high as 14 to 1 will benefit greatly from this powerful clean and fast burning fuel. It is oxygenated to improve engine breathing to improve power in engines with air fuel restrictors.
It blends with any pump fuel (for those who want to boost the octane of normal petrol) and provides great protection against knock (pinking or detonation). It contains no lead. The oxygen carrier is Ethanol - please call us regarding potential issues with fuel cells before using any ethanol based fuels.

SUNOCO 260GTX (104RON, 94MON and 0% oxygen) - Unleaded

Sunoco 260GTX is developed as a very clean burning and detonation resistant racing fuel. It is used as the control fuel in ALMS and Grand Am (since January 2006 replacing the Sunoco 260GT) and is designed to not affect fuel bladders (some fuel cell manufacturers have had problems with fuels containing ethanol as the oxygen carrier).
Due to its high octane numbers (104RON and 94MON) combined with a relatively high specific gravity of 0.763 kg/litre the 260GTX works exceptionaly well in turbo engines, without air restrictors, and high compression normally aspirated engines.

SUNOCO FR (102RON, 90MON and 3.7% oxygen) - Unleaded
 

The SUNOCO FR is the latest fuel from SUNOCO especially designed to meet the current FIA regulations for petrol (Appendix J 252.9). Sunoco FR has been used as a control fuel in the British F3 & GT Championships, the UK SEAT Cupra Championship and the Club F3 Championship. Formulated for racing engines with compression ratios as high as 12.5 to 1. Its high oxygen content will dramatically increase power in air restricted high compression engines. Increases power in both normally aspirated and in turbo engines and provides great protection against knock (pinking or detonation). It will leave no or little carbon deposits which enables precise engine tuning to maximise power.
If you are running an engine which is 'starved of air' (e.g. F2 stock cars with pinto engines or air restricted F3, GT, Rotax kart engines) you will be amazed by the increase in torque and acceleration provided by this fuel.

 
Sunoco CF (102 RON, 90MON and 2.7% oxygen) - Unleaded

Sunoco CF is our latest fuel designed especially to meet FIM, FIA and CIK regulations for racing. It also conforms to current European regulations for pump fuel, EN 228. Due to its unique design this super clean burning, ultra low sulphur (only traces) and benzene free unleaded racing fuel has already proved a huge success in both car and motorcycle racing. Its fast burning properties allows faster increase in revs compared to other similar racing fuels.
Sunoco CF is the control fuel for the French (and European) VdeV endurance racing series
 

SUNOCO RMR (100RON, 89MON and 2.7% oxygen) - Unleaded

Sunoco RMR is especially designed for the MSA pump fuel regulation. This high quality and consistent 100RON, 89MON and 2.7% oxygen allows cooler running generates extra power. Suitable for both turbo and normally aspirated 2-stroke and 4-stroke applications. The Sunoco RMR is the control fuel of Radicals, Mini Challenge and the new exciting VdeV UK endurance race series.
The Sunoco RMR is used by the Honda Multitek motorcross team and the Suzuki 250cc Motorcross team.
The Sunoco RMR meets BSEN228, BS7800, FIA and FIM specifications.

SUNOCO Supreme (114RON, 110MON and 0% oxygen) - Leaded

A high octane, high quality leaded fuel designed exclusively for competition. The SUNOCO Supreme was the official fuel for all NASCAR events until end of 2006(they are now using the unleaded Sunoco 260GTX). Formulated for racing engines with compression ratios as high as 16 to 1. It has an additive package designed to keep carburettors and fuel injectors clean at the same time as it controls surface ignition for maximum performance. This clean and fast burning fuel will leave no or little carbon deposits which enables precise engine tuning to maximise power. Well proven in all forms of racing including turbo charged engines. Excellent to blend with unleaded fuels to boost their lead content and octane levels (works much better than using octane boosters).

SUNOCO MO2X (116RON, 108MON and 2.7% oxygen) - Leaded

Sunoco Performance Products newest fuel, MO2X is blended to meet the needs of small displacement, high rpm and high compression rations up to 15:1. Ideal for racing motorcycles, snowmobiles and motorcross applications. MO2X is formulated to give improved throttle response and protection against detonation at high load and high rpms.
It is unique in that it contains both oxygen and lead. It blends with any pump fuel (for those who want to boost the octane of normal petrol) and provides great protection against knock (pinking or detonation). A leaded fuel containing ethanol as theoxygen carrier.

SUNOCO Maximal (118RON, 114MON and 0% oxygen) - Leaded
 

A high octane, high quality leaded fuel designed exclusively for drag racing. Formulated for racing engines with compression ratios as high as 17 to 1. A very fast burning fuel especially designed for big bore high compression engines. It has an additive package designed to keep carburettors and fuel injectors clean at the same time as it controls surface ignition for maximum performance. This clean and fast burning fuel will leave no or little carbon deposits which enables precise engine tuning to maximise power.
Although the Sunoco Maximal was initially designed for drag racing it has proved to work really well in high revving 2-stroke and 4-stroke engines.

Sunoco HCR Plus (118RON, 113MON and 0% oxygen) - Leaded

Sunoco HCR Plus is especially designed for large bore race engines with compression engines above 14:1. Designed for sustained high load and high RPM conditions where heat generation is a big issue. Very resistant to vapour lock. Widely used in the Late Model category with cylinder capcity over 7 litres.

SUNOCO MaxNOS (119RON, 113MON and 0% oxygen) - Leaded

The MaxNOS is the newest product in the Sunoco race fuel range of high quality and high performance fuels and is replacing the Supreme NOS. All racers that have previously used the very popular Supreme NOS have reported increased power and lower qt miles times with the new MaxNOS. Thanks to a higher density and that it does not contain any oxygen (not beneficial in a NOS application) the MaxNOS is safe to run as a direct replacement for Supreme NOS. However, leaning off with approximately 1% will further enhance power but as with all recommendations please note that all engines are individual so make sure that any leaning off is carefully monitored.
The MaxNOS is especially blended for use in Nitros Oxide applications. It's very dense for such a high octane fuel helping to protect the engine in the NOS stage. Its carefully selected properties and very fast burning distilation curve makes it an ideal choice for highly tuned dragracing engines dramatically increasing engine power over similar high octane fuels. It blends with any pump fuel (for those who wants to boost the octane of normal petrol) and provides great protection against knock (pinking or detonation).
 

R 5SR (100RON, 91MON and 0% oxygen) - Leaded
 

A leaded fuel designed with the old '5 Star' in mind to provide excellent protection for historic racing engines. This fuel conforms to the current FIA Appendix J regulation for leaded petrol. It conforms to the British Standard for leaded petrol BS4040. The lead content, combined with the high RON and MON values, not only provide excellent valve seat protection but also reduces knock in high compression engines.
Used by many front running and championship winning racers in the UK. Official fuel of Gentleman Drivers and HSCC.
 

R 6SR (105RON, 95MON and 0% oxygen) - Leaded

A leaded fuel designed for the 2004 Goodwood Revival meeting to provide ultimate protection for tuned historic racing engines. The lead content, combined with the high RON and MON values, not only provide excellent valve seat protection but also reduces knock in high compression engines. Used by many front running and championship winning racers in the UK. Officical fuel of Top Hat, Grand Prix Masters and World Sportscar Masters.

Sunoco racing methanol 99.85% pure

Sunoco Racing Methanol is made from virgin stock and of a minimum 99.85% purity. It is an excellent fuel and can favourably be used in turbo charged cars with great result. Its high oxygen content and cool burning properties increases power. Please note that methanol is highly corrosive and toxic and therefore should be handled with the greatest respect. In addition its very high oxygen content of over 50% means that engines have to be remapped before using methanol.

R E85 racing

The R E85 racing is especially formulated to be 100% consistent and resistant to detonation. It does not contain any Sulphur, Benzene or Aromatics as we do not blend the Ethanol with normal petrol. The ethanol content is always at 85% and the petrol content is petroleum alkylate based ensuring maximum quality and consistency. To increase lubrication and reduce corrosiveness a synthetic top lube have been added.
Can not be compared to inconsistent E85 sourced from normal petrol stations. Ethanol part of the E85 is made from sustainable sugarbeat plants in Europe.
Extremely clean racing diesel made from 100% Natural Gas.
R GTL R diesel is made from 100% GTL components. This ultra clean sulphur, benzene and aromatics free alternative diesel is designed to increase power in tuned diesel engines. Made from natural gas synthetically converted to an excellent choice for diesel powered race engines. Due to its higher cetane values and its clean properties diesel engines can run much higher boost without any visible smoke.
Meets all current EN590 specifications for diesel sold in Europe and also meets FIA diesel specifications.

 

 Q & A

Q: How do I best store my racing fuel?

The manner in which racing fuel is stored is very important if you want to have the same quality product after storage that you had prior to storage. This can be just as important for your lawn mower petrol as it is for the petrol you use in your race car. If the proper storage procedures are not used, some of the 'light ends' (hydrocarbons that boil at ambient temperatures) can be lost when the storage container is opened. These 'light ends' evaporate in the intake manifold during a cold start thereby providing vapours to the combustion chamber for ease of starting. Even more importantly, the loss of these 'light ends' can contribute to lost octane quality and reduced power, which can be detrimental in racing. These problems can be minimized by following a few general rules.
• Store racing gasoline in a cool place.
• Store racing gasoline in steel drums with tightly sealed caps. This does not include most plastic jugs since their sealing ability will not contain the vapours of gasoline. Some plastic jugs allow the gasoline to be exposed to sunlight which deteriorates the tetraethyl lead in the gasoline which in turn reduces the octane numbers.
• If your storage container is warm or hot, put it in the shade to cool down before opening it. This helps to retain the 'light ends'.
• Sunoco and R racing gasoline has a longer shelf life that normal pump fuel due to lower levels of olefins and higher levels of additives to resist gum formation.
• Storage for two years in a cool place in tightly sealed containers is not a problem.
 

Q: Is it true that the higher the octane the slower the burn-speed?
 

Fact: In many cases, high octane racing fuels have faster burning characteristics than low octane petrol. It is rarely slower (the myth comes probably from mislead racers that think that aviation fuel is racing fuel as aviation fuel is really slow burning).
Q: RON and MON - which octane is displayed at European forecourts?
RON (Research Octane Number) is the octane number you will see at all European roadside fuel stations. In America they display the AKI (Anti Knock Index) which is the average of RON and MON (Motor Octane Number). As both RON and MON are vital when chosing the correct racing fuel for your engine, all Sunoco & R racing fuels have both octane numbers displayed.
The British Standards minimum requirement for Premium Unleaded is 95RON and 85MON and the minimum requirement for Super Unleaded is 97RON and 86MON - not sufficient to protect your race engine! Please see questions about RON and MON for further information.
 

Q: What is detonation?
 

Detonation occurs after the sparkplug has ignited the air-fuel mixture and the flame front is moving through the combustion chamber. If, during this burning process, the unburned air-fuel mixture reaches a temperature and/or pressure at which it is no longer stable, it will explode (burn up to 10 times faster) and as a result increase pressure on the piston before Top Dead Centre (TDC). Piston burning and rod bearing damage are the result as well of loss of power.
 

Q: What is MON (Motor Octane Number)?

MON is determined in a single cylinder engine similar to the RON engine with a few changes that make operating conditions more severe and therefore the octane numbers are lower. The MON engine run at 900 RPM with a 300ºF (148.9ºC) mixture temperature. Spark advance varies with compression ratio. In a real world engine, MON is necessary to satisfy octane demands at wide open throttle. This is a very important number for racing engines since they spend a high percentage of their lives under high speed and high load conditions. Racing engines cannot afford to be short on octane quality, since detonation or preignition will quickly reduce a racing engine to junk.
The MON appetite of an engine with 13:1 compression ratio and a four inch bore varies with operating conditions but is normally around 101. To cover yourself for extreme conditions, it is wise to have an octane cushion, but there is no advantage to using a very high octane quality product if you do not need it - more octane does not give more power in that case which is a normal misunderstanding.
 

Q:What is octane?

The octane quality of a gasoline is its ability to resist detonation, a form of abnormal combustion. Detonation occurs when the air-fuel mixture reaches a temperature and/or pressure at which it can no longer keep from self igniting. Two types of abnormal combustion are common: the first is detonation as previously mentioned and the other is preignition.
Q: What is RON (Research Octane Number)?
RON is determined in a single cylinder variable compression ratio engine that operates at 600 RPM with a 125ºF (51.7ºC) inlet air temperature at standard barometric pressure. Spark advance is fixed at 13º BTDC. In a real world engine, RON is necessary to satisfy part throttle knock problems. High RON values are more important in carburetor engines than in fuel injector engines as the filling of the combustion chamber is not as efficient.
The procedures and hardware for the RON test were originally developed in 1931. The hardware was revised in 1948 with procedural changes made until the late 1960's.

Q: What is pre-ignition?

Pre-ignition is what you really do not want to experience. It is usually started by a hot spot in the combustion chamber which causes the mixture to ignite before the sparkplug fires. Under wide open throttle conditions, pre-ignition will destroy pistons in seconds. It will also occur if the air-fuel mixture can not stay stable - i.e. it will explode - before the sparkplug starts the burn process (this normally only happens in drag racing engines running on Nitromethane).

Q: Why is racing fuels more expensive than normal forecourt fuels?

Racing fuel is more expensive than the forecourt pump fuel due to the fact that it is a much purer product and engineered to increase performance rather than just to meet the British Standards for unleaded or super unleaded petrol. As the racing fuels are made from much purer products it will also burn cleaner resulting in: better throttle response; better power/acceleration; cleaner combustion chambers and most importantly allow you to jet or map your car to the fuel's optimum performance. Normal pump fuels vary so much in octane numbers and specific gravity meaning that you have to set up the engines with a huge safety margin.
All Sunoco & R racing fuels have higher octane than normal pump fuels allowing you to build the engine with higher compression ratio. Your race engine will also run cooler using racing fuels.
Another fact is of course the fact that the fuel will be delivered in new, for hazardous goods carriage, UN approved drums.
Running racing fuel in your high performance / racing car will give you the cheapest power you can buy (or as one of our clubman racers told us: 'before running the R MR in my hot hatch I had to rebuild my engine twice a year due to piston failures. The extra £350 on top of what pump fuel would have cost is easily recouped by saving £1,250 per engine rebuild - and I got 6 BHP more!'