Originally Posted by kero
^^ putting 93 in might be a waste of money but if you read my post #7, the 93 octane rids my car of the pining or knocking or whatever it's called.
When the engine is under load like with A/C, the 93 actually makes an even bigger difference in ridding that noise.
I wonder if something is amiss with my wagon? 35K miles, 30K done by local suby buddy who works for a suby service dept.
What does 93 octane do for your car that 89 or 91 wouldn't? There's no way your stock tune non-turbo car NEEDS 93 octane to avoid detonation, unless there is something wrong with your car.