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Lately when filling up I put about 4.5 gallons of 100octane and the rest 91oct. My car loves this...

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Old 02-27-2002, 10:52 AM
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Default Lately when filling up I put about 4.5 gallons of 100octane and the rest 91oct. My car loves this...

What are the downfalls of putting high octane fuel in the car continuosly. It only breaks down to running around 94oct. or so.
Old 02-27-2002, 10:55 AM
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Default the Mobil near me has 110 octane race gas, If I put 4-5 gallons of that and the rest 93, i'd be.....

averaging around 100 octane, is that too high, will there be any improvement ?
Old 02-27-2002, 11:03 AM
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Default 110 octane? Make sure it's unleaded....

in Michigan, anything higher than 100 or so is usually leaded.
Old 02-27-2002, 11:05 AM
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Default 110 is leaded AFAIK!

The highest I've seen for unleaded is 104 Octane.
Old 02-27-2002, 12:21 PM
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Leaded shouldnt matter...that is if you dont care about your cat
Old 02-27-2002, 12:24 PM
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or your oxygen sensors.
Old 02-27-2002, 12:54 PM
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Default Downfall

You mean ~$4.00/gal isn't enough of a downfall?

Nothing else you should be worried about though, it's lovely and addicting stuff.
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