Racing fuel can be ordered through several performance shops. Some racing teams even offer special blends of leaded and unleaded race gas. Some racing fuel is oxygenated with ethanol to increase performance. Use of ethanol in performance vehicles has been around for a while.
Common racing fuel octane levels are 100 to 105. Racing fuel is used in about every imaginable motor sport and is in really high demand. Common prices for racing fuel can get fairly expensive, so it's best to shop around. Finding custom made gasoline from racing teams and vendors is a great way to ensure quality. Check with the big oil companies too, because they also offer special blends for racing. Special types of gasoline are available all around the country. Make sure you check with your tuner before using race fuel.
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Use of racing fuel requires additional safety equipment and fuel systems to accommodate the change in chemical composition. Special steel braided lines, anodized metal, high pressure pumps, fuel rails, injectors, and ECU re programming. Damage can be done to a vehicle not properly tuned to run race fuel. Complete engine failure is probable. Forced induction vehicles are more sensitive to changes in fuel and air and should be reprogrammed for higher levels of octane that racing fuel offers.
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Safety while using racing gas should be your highest priority. When upgrading to a performance fuel system it is typical for leaks to occur. Make sure that you test your fuel system before taking it to the track. Run it several times at all fuel pressures to make sure there is no leaks. Use of a fuel pressure gauge is helpful in detecting fuel leaks. It's also a good idea to use your nose to smell for gasoline leaks if possible. Visual tracing of fuel lines and ensuring no leaks exist is the smart way to modify. It only takes one fire to burn your car to the ground.
If it's a street car, good luck waiting for fire rescue to show up. Normal response times vary from 10 min up to an hour depending on what type of urban / suburban and distance to fire station. If you have a fire extinguisher handy, you can salvage your vehicle if you stop the fire before it gets out of control. Forced induction vehicles are 3x more likely to catch on fire than naturally aspirated. Be careful when using racing fuel!
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