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Re: Manual says 89 Octane is OK, but. . . . . . . (archive)
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Posted by Harvey on January 08, 2001 at 15:05:20:

In Reply to: Manual says 89 Octane is OK, but. . . . . . . posted by Great528 on January 07, 2001 at 21:38:32:


what do you guys/gals run? Does the 528 need premium fuel, or just the 540/M5?

Some folk may consider this heresy, but I buy my gas at Costco. They offer regular 87 and high test, 92. Their price for high test is the same or better than "outside" 89 grade.


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