- Feb 13, 2004
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I can get redline 5w-20 or 5W-30 locally for $8 quart or Mobile 1 5W-30 for $4 quart. What would be better for engine condition, M1 at 5,000 mile intervals or Redline at 10,000 intervals w/ filter change at 5k(claims it is good for 15-20k). I heard redline has a superior addative package and would provide better stability even with extended drain intervals.
Driven moderately hard
Driven moderately hard
