Originally Posted by TBONE24
I run mid grade fuel in my GTO and it runs just fine.It says it recommends
premium fuel, not required.
I guess it depends on compression #s - my Cobra's 9.85:1 compression ratio requires Premium ONLY , and it really lets it show when I'm only putting 91 vs. 94 (Petro Canada) octane as it will pink some .
Now if the R/T 6spd can be run on 89 mid grade octane , that will be acceptable , remains to be seen though what is written in-dash : Premium
ONLY ??
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2005 Mazda 6 GT MTX Sedan Black
1996 Ford Mustang SVT Cobra White
2004 Suzuki GSX R750 Blue/White
Guess I'm here for another toy hey !