Originally Posted by
GraphiteGhost
A car is a car, a bike is not a car. I got lost with what you posted after that. Must be the meds I take, or the state of mind I am in right now... In general, a production CAR designed for 93 octane can run 91 octane very easily with no discernible harm to car or drivers wallet. Does that help?
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A 4 stroke engine.. is a 4 stroke engine.. "performance design" is the key ingredient . 1200 cc.. 91 octane.. 883 cc 87 octane.. My Avalanche.. pick your flavor.. short of towing - then it's recommended as 91 octane only. Why? "by design"..
As I stated.. I have yet to see a production car "designed" for 93 octane.