Quote Originally Posted by slantback37 View Post
Rspears. Would it be the same if she used preimium gas??
Yessir. Your engine gets the most power and best efficiency with the lowest octane fuel that it can run without detonation, indicated by "ping" under heavy load. If it's a stick, put it in high gear at a moderate low speed, floor it and if it does not clatter on regular gas then any higer octane rating is just being wasted, and will actually run less efficiently.