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Green spark plugs?
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07-11-2008, 05:06 PM
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rjacob
EcoModding Apprentice
Join Date: Jun 2008
Location: Rochester, NY
Posts: 152
2017 Honda Civic LX
- '17 Honda Civic LX
90 day:
39.92
mpg (US)
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They don't sound too promising:
Don't count on E3 spark plugs to save you money on gas - AutoblogGreen
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