- Joined
- July 5, 2003
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- City, State
- Brockton, MA
- Year, Model & Trim Level
- '93 XLT 4x4
goobenet said:can't you really do some damage to explorers using 93+ octane gas? The engines are designed around 87...
No...why whould you think that? Octane is a measure of how well a fuel resists pre-detonation...It is meant for high compression engines to prevent the fuel air mix in a cyclinder from exploding during the compression cycle (before the spark plug fires). There is no problem running it in lower compression engines, but It is just a waste of money since the engine doesn't need it... Now if you ran 87 octane in a high compression engine it would knock like crazy underload and potentialy cause engine damage.