Quote:
Originally Posted by garner49
NO. Mid-grade is only 2-octane higher - and should be discontinued altogether; I'll bet it's sales are less than 2% of all gas sold. In most places it's .10 to .12 higher than 87. Premium doesn't seem to offer the Turbo-Lite anything for the extra $. I've tried it several times with no noticeable difference.
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You wont until 16ish psi and you start getting serious knock and pulling timing