While you are correct that the higher octane will probably not do any permanent damage to the engine, it will NOT provide a greater efficiency than the lower octane (this is for the cube mind you). You are essentially paying more money for the same milage unless you have a high performance engine.Rubiks said:Someone can correct me if I am wrong here, but I believe octane is a rating of the stability of the gasoline. The higher the octane the more stable the gasoline. The point is for the spark plug to ignite the gasoline and not the compression of the cylinder, this would be why high compression engines would require the higher octane gasoline. Either way even if you use the higher octane gasoline in a lower compression engine it will still result in a more efficient cleaner engine due to fewer misfires in the cylinder. But I am cheap so I use the 87.
You may not believe me, but the fact of the matter is this is the kind of thing I will be doing for a living. Go ask an auto repair man this question, and chances are he'll give you the same answer.Hip2BSquare said:I figured we can discuss this too, since there's no correct answer to either question.