Stock GT low miles knocking with 87 octane
#1
Stock GT low miles knocking with 87 octane
I have 01 GT 5 speed. The other week I put 87 octane into it and drove it, two things: when on the highway around 60 and throw it into 3rd and accelerate or during any hard acceleration I notice knocking 4000 and up rpms, second, when I start it or sometimes in traffic I notice bad exhaust smell, it smells like a race car or cart under acceleration.
Since I have only 24k miles on it, and since it was this way right out of dealer with 16k miles after service, I thought everything is alright. The smell thing was like this right from the dealer, the knocking is new. What do I do?
Since I have only 24k miles on it, and since it was this way right out of dealer with 16k miles after service, I thought everything is alright. The smell thing was like this right from the dealer, the knocking is new. What do I do?
#7
RE: Stock GT low miles knocking with 87 octane
Try better fuel. I can't run most of the 87 octane fuels around here, and I have no mods that would require an increase in octane. Sometimes, the fuel quality is the culprit and not the engine.
#8
RE: Stock GT low miles knocking with 87 octane
Oh yea, Im running 91 now, though manual and FAQ on some sites say 87 should be just fine. When I run 91 I also get no exhaust smells, but with 87 it smells like Im running on dark site of detonation. Thus far I have two ideas, 1) check if I have a chip installed, 2) check plugs.. Its a new car, so it should be alright, this is rather surprising.
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