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Old 04-19-2019, 03:31 AM   #6 (permalink)
eco....something or other
Join Date: Jul 2009
Location: Colfax, WI
Posts: 707

wood hauler - '91 Ford F-250
Team Pontiac
90 day: 18.97 mpg (US)

Rav - '06 Toyota Rav4 Base
90 day: 26.52 mpg (US)
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I don't see much in those tables that's useful in demonstrating the advantage of the plugs. I side gap normal plugs and that seems to help performance by getting the electrode out of the way so the flame kernel can spread faster.

1991 F-250:
4.9L, Mazda 5 speed, 4.10 10.25" rear
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