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killerofcrows48
04-20-2006, 12:30 PM
in my manuel it says to run 92 or higher octane(it says it will hurt the engine if you dont)...i was wondering is this true?
killerofcrows48
04-20-2006, 03:54 PM
my 400ex is stock
underpowered
04-20-2006, 04:12 PM
run what your manual say. they tell you to run that for a reason.
04-20-2006, 04:37 PM
i dont think it would matter but who knows
04-20-2006, 04:52 PM
I have a stock enigne on my 450R and I run super unleaded which is 97 octane... but just regualer gas dont hurt it