Installation & Operation Manual
O-360 and IO-360 Series Engines
© March 2004 Superior Air Parts Inc. Chapter 6 • Normal Operating Procedures
2
WARNING: THE USE OF A LOWER OCTANE
RATED FUEL CAN CAUSE PRE-IGNITION
AND/OR DETONATION WHICH CAN
DAMAGE AN ENGINE THE FIRST TIME HIGH
POWER IS APPLIED. THIS CAN POSSIBLY
CAUSE ENGINE FAILURE. THIS WOULD
MOST LIKELY OCCUR ON TAKEOFF. IF THE
AIRCRAFT IS INADVERTENTLY SERVICED
WITH THE WRONG GRADE OF FUEL, THE
FUEL MUST BE COMPLETELY DRAINED
AND THE TANK PROPERLY SERVICED,
PRIOR TO FURTHER ENGINE OPERATION.
Note: For added safety when using 91 Octane
motor fuel, the use of a Reid Vapor Pressure
(RVP) tester, such as a Hodges Volatility Tester
(which gives a go or no-go reading), is also
recommended.