Thread: Octane Question
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Old 08-27-2001, 11:28 AM
G-Benz's Avatar
G-Benz G-Benz is offline
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Join Date: Apr 2001
Location: Dallas/Fort-Worth
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If you suffer no ill effects, then stay the course.

It's just a theory, but there may be additives in the higher grades that help with keeping injectors clean, reducing carbon build-up, etc., etc. Then again, it could just be "snake oil". Higher octane fules have a hotter "flash point", which inhibits detonation in high-compression engines, or lower-compression supercharged and turbocharged engines.

As your car gets older, some problems that might crop up could be solved simply by upgrading the octane you currently use.
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car
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