FallenPhoenix said:detonation is when the cylinder is hot enough to ignite the air/fuel mixture before the spark plug does.
MT1083 said:I would NEVER use anything below 89 in a stock stang. That is what the manual recommends.
john_324 said:My manual says 87 (a 2002)...did Ford change it?
Mike98GT said:I get some pinging when I get on it in the heat with the a/c on (it was 90 degrees last week here)
Is this a concern? How can it be fixed? I use 87 oct. Stock GT
MT1083 said:Holy crap...I am a retard.Don't ever pay attention to things I write. It is 87...but I still would go with the 89. i was just
speed545 said:Until i started to mod the car, i used 87 octane and the engine never ping. If you dont have any mod, your engine souldnt ping when running with 87 octane fuel. If it does, theres a problem and putting higher octane fuel in it is not the solution, it only hide it.
CTGrey02 said:Out of curiosity, were you flooring it hard in 5th gear when you heard it instead of downshifting?
Mike98GT said:I bet you just didnt get in a situation where detonation can occur. I understand that low grade gas can cause it, but I don't see how something can be wrong with my engine. What could possibly cause it besides bad gas?
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