Central Oregon Racing Fuel

We carry a full line of VP Racing Fuel as well as K&S Racing fuel for all your high performance needs. Both of the brands we supply are leaders in the Racing Fuel Industry. Whether you’re just trying to out run your buddies or out trying to win the next big race, we can supply you with all of your racing fuel needs!

Racing Fuel F.A.Q and Tips

What Is Octane?

Octane is a fuel’s resistance to burn. The higher the octane, the easier it can withstand higher compression and temperature without igniting and causing pre-ignition or detonation. Octane is rated in Research Octane Numbers (RON), Motor Octane Numbers (MON) and Pump Octane Numbers (R+M/2). The pump octane numbers represents the number you see on the pump at gas stations, this is the average of RON and MON.

Racing Fuel Tips
  • As jet sizes get bigger, the percentages change faster.
  • There is a 5% window for jetting on gasoline.
  • The lighter the gas, the more crucial your jetting becomes.
  • Store in a cool, dry area away from water and heat.
  • Keep fuel in an approved container, properly marked and designed to store flammable liquids.
  • Store in a well ventilated area away from all sources of flame, ignition or electrical charge.
  • Keep all caps, bungs and lids tightly fastened to minimize vapor loss.
How To Store Racing Fuel

Race fuel has a very good shelf life.  However, it’s very sensitive to light, so it should not be stored in clear containers, containers should be opaque (light proof). Exposure to direct sunlight will cause fuels to deteriorate. Fuel can be stored for extended periods of time as long as it is in an air tight container. Race fuel jugs and plastic drums are not good for long-term storage; if you are going to store your fuel, use a quality steel drum and keep it inside.

What is burning speed?

It is the speed in which fuel releases its energy. Different engines require fuels with various burn rates.

What is detonation?

Fuel doesn’t explode as much as it burns. A proper fuel air mix will have a flame front that travels from the initial ignition point (spark plug) and travels across the face of the piston. Detonation occurs when the fuel mixture ignites other than at the spark plug. This causes several flame fronts and when these flame fronts collide you have detonation. Higher octane fuel will usually solve this problem.

What is pre-ignition?

Pre-ignition is when the fuel ignites before the spark plug fires. This is usually caused by hot spots within the cylinder. Higher octane fuel will usually solve the problem

What octane do I need to use?

This is one of the most asked questions and it is also one of the hardest questions to simply answer. A lot of information is needed to assess an engine’s needs. A rule of thumb is to start with the engine’s compression ratio.

Why not to run aviation fuel?

Aviation fuel usually has an octane number of around 103 (r+m/2) and it has a relatively low lead content. Aviation fuel is designed to burn at a high altitude and relatively low RPM. Unlike airplane use, racing applications have a wider RPM range and the air is much denser. Therefore, aviation fuel is not the optimal choice.

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