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Northstar V8 Spark Plug?s

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Old 01-11-2012, 07:47 PM
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did it raise your MPG a tiny bit?
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Old 01-11-2012, 08:49 PM
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Originally Posted by 454ss
If my new (to me) GXP is not showing any problems at 112k, should I just continue to go with what I got or would you just change them now to get it done sonce its over 100k.
do em! take care of your maintenance..especially with ignition stuff because if you have a weak plug it will make you coil/wire/ignition module work harder to get a good spark to the cylinder
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Old 01-12-2012, 05:11 PM
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Its funny, I had a 2007 fusion and I watched every gallon of fuel. Now that I got this beast, I just don't care any more. It'* crazy. I have no data for you.
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Old 01-16-2012, 06:08 PM
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lol.... I know what you mean!!!
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Old 04-22-2013, 08:41 PM
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I bought Bosch Iridium plugs. Autozone is doing a rebate on them $2 per plug up to 16. The Plats are $1. Rebate runs thru 12/31/13
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