| Trust the engineer. Stick with what the manual says.
My car was designed for 87 so I use 87. I have MANY times tried 89 and 91 for several tanks and there was no real improvement. IMO, I thought the car accelerated quicker, but how much faster can a Civic feel? heh
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If you think education is expensive, try ignorance.
Education is the progressive discovery of our own ignorance. |