Ford Mustang Forum - View Single Post - Upgrades and Octane boost
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post #13 of (permalink) Old 10-25-2005
mac_mogul
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I always use Shell V-Power 91 Octane fuel. Unless a shell is not available, but even then I always use premium.

But after I installed my plugs, I noticed a major pick-up in acceleration and fuel efficiency. I don't know if this is typical or not, but those are the results that I got from installing platinum plugs.
So personally, I don't feel like they are a waste of money.

Black 2003 3.8 Auto
K&N Air Filter
BOSCH +4 Platinum Plugs
True-dual exhaust Flowmaster 80 series
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