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Execut1ve · 07-06-2011, 07:57 PM

The mileage has come to replace the spark plugs in the civic... so that has me thinking, what is the interaction between spark plugs and fuel econ? A bit of background, I am accustomed to maintenance on the truck, where the rule of thumb is (for 87-96 F150's) that you stick with the plain Motorcraft coppers as they have a tendency to foul the fancier plugs. I'm still getting used to the civic... so, is there any advantage (in terms of fuel econ) if I go for the fancier platinum/double platinum/iridium plugs?

I'd also be interested in any thoughts on combining a beefier coil/wires/cap and rotor with a spark plug gap increase... that's sometimes done on the trucks, is there some reason that wouldn't work on the civic?

07-06-2011, 07:57 PM	#1 (permalink)
Execut1ve EcoLurker Join Date: Dec 2010 Location: Springfield, OH Posts: 116 truck - '94 Ford F150 XLT 90 day: 13.15 mpg (US) civic - '00 Honda Civic EX 90 day: 36.24 mpg (US) Thanks: 1 Thanked 1 Time in 1 Post	spark plugs and fuel econ The mileage has come to replace the spark plugs in the civic... so that has me thinking, what is the interaction between spark plugs and fuel econ? A bit of background, I am accustomed to maintenance on the truck, where the rule of thumb is (for 87-96 F150's) that you stick with the plain Motorcraft coppers as they have a tendency to foul the fancier plugs. I'm still getting used to the civic... so, is there any advantage (in terms of fuel econ) if I go for the fancier platinum/double platinum/iridium plugs? I'd also be interested in any thoughts on combining a beefier coil/wires/cap and rotor with a spark plug gap increase... that's sometimes done on the trucks, is there some reason that wouldn't work on the civic? __________________