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Gasoline: TOP TIER versus Non-TOP TIER Usage

Originally Posted by AyandehRacing Power not withstanding, does anyone know if there is any difference from a wear and tear "health of engine" perspective in pumping 89 or 91 over

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Old 10-23-2013, 11:22 AM   #1 (permalink)
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Power not withstanding, does anyone know if there is any difference from a wear and tear "health of engine" perspective in pumping 89 or 91 over 93?
Yes. If you're running 89 in an engine tuned for premium gas (91/93) you're most likely pinging until the ECU pulls timing back. That's not good. There's a reason they tell you to run nothing less than 91.
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Old 10-23-2013, 11:34 AM   #2 (permalink)
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Yes. If you're running 89 in an engine tuned for premium gas (91/93) you're most likely pinging until the ECU pulls timing back. That's not good. There's a reason they tell you to run nothing less than 91.
you cant say it any better than that.
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