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Old 06-02-2008, 04:39 PM
harmankardon35 harmankardon35 is offline
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Re: Iridium IX Plug #TR55IX

Quote:
Originally Posted by LittleHoov
Ive got a 3.5 and Im running regular TR55 copper plugs, not sure of the exact part number, but I havent had any issues that seem to be related to spark plugs.

My average gas mileage seems to have slumped off a little, but I blame that on the great state of Missouri, who as of 1/1/08 mandates 10% ethanol in every grade of gasoline.
ugh they did that up here in ontario here a few years back...instantly noticed lower MPG.
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