Rotax Aircraft Engines
Rotax four stroke aircraft engines have proven themselves as reliable engines. They can be bought as experimental (UL) or certified (A and F) engine and there are three main models to date. The original engine is the 80 Hp 912, from which the 100 Hp 912S was developed and they also have a 115 Hp turbocharged 914 engine.
Not using the correct operatings fluids in these engines is a safety issue. This service instruction describes criteria for proper oil selection based on the fuel type that is used, operating conditions and flight profile. Guidance is also given for the selection of the correct coolant: the operator has the choice of using conventional 50% mixture or a waterless coolant.
Bombardier Rotax Service Instruction
SI-912-016-914-019-R2, Operating Fluids
