Egon
Epic Contributor
The octane rating of the gas should only come into effect if you have a high compression ratio. It will have additives which change charachteristics of the flame front in the ignition process. If you do not have a rattle from the engine when it is under heavy torque load the high octane will not help.
In past years this was a very common problem.
Egon
Egon
In past years this was a very common problem.
Egon
Egon