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Old 01-17-2019, 02:48 PM   #2 (permalink)
19bonestock88
Master EcoModder
 
Join Date: Jun 2016
Location: WV
Posts: 979

IGL - '04 Saturn Ion
Team Saturn
90 day: 53.63 mpg (US)
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So for $27 you could try a plug that seems to not just last longer than platinum or iridium, but also causes a faster burn, effectively advancing your ignition timing? Hmmm...
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