With my on going crusade over at Dodge Forum someone just posted this.
Quote:
Originally Posted by CSCustomCars
Octane is the fuels resistance to knock. Using higher octane than what the engine is designed for can actually shorten the life of the motor.
Always use the recommended octane that the engine was designed for.
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Is there any validity to this? I've always thought engines just advanced timing to meet whatever octane there was... (new engines, I know old engines don't)