Translations:KAVAN AP09A - Instruction Manual/51/en

Recommended fuel

The quality and type of fuel used greatly affects the performance and service life of the engine. We recommend two basic types for operating the AP09 engine: the fuel for breaking-in must contain no less than 20 % castor oil and no more than 15 % nitromethane. Using fuel with a higher nitromethane content or synthetic oil will cause the engine to run at too high a temperature, resulting in excessive wear and damage to the engine in a very short time. For proper break-in, the fuel must contain castor oil to ensure lower operating temperatures. Once the engine is properly broken-in (after about 45 minutes according to the procedure described below with the recommended break-in fuel), you can use fuel containing up to 25 % nitromethane and no less than 16 % castor oil, and fuel with a mixture of castor and synthetic oil can be used.