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100 or 110 Octain Fuel for Raceday

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Old 03-04-2010, 05:37 PM
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100 or 110 Octain Fuel for Raceday

I am going to be racing at Laguna Seca on Monday, March 8th. I was wondering if I should wait to fill up my car with 100 or 110 octain LEADED gas at the track?

Would it in any way hurt the car?
Would it even be worth any performance gains?

on an 04 w211 E320 if that matters
Old 03-04-2010, 05:49 PM
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It will kill your catalytic converters and it won't be covered under warranty.

Catalytic converters are the reason unleaded came on the market.

You will get ZERO advantage from putting in the so-called "race gas" in any event.
Old 03-04-2010, 08:47 PM
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