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Old 01-13-2007, 10:59 AM
Gary Ganaway's Avatar
Gary Ganaway Gary Ganaway is offline
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Join Date: Dec 2001
Location: Cincinnati, Ohio
Posts: 367
The manual on my 85 380SE (V8) says to use 87 octane which I do. nor problems, etc. I have put in 89 and 93 but notice no difference. I have put 14,000 miles on it using 87 no issues.
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