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Old 03-13-2012, 04:12 AM   #30 (permalink)
ps2fixer
Master EcoModder
 
Join Date: Jan 2012
Location: MI, USA
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92 Camry - '92 Toyota Camry LE
Team Toyota
90 day: 26.81 mpg (US)

97 Corolla - '97 Toyota Corolla DX
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90 day: 30.1 mpg (US)

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My dad has spoken of horror stories about the slit style plugs arcing to the piston rather than the ground electrode and over time burning a hold in the piston. I don't know where his source is, but he just got a car that OEM calls for a split plug, but also accepts 6 other designs, including an older model plug which he bought whole sale that uses single electrodes. Car is a 1998 Camry, older style is 92-96 camry.

In either case, I would be sure to atleast stick to a plug that the OEM says to use unless there is good proof it is a bad pick.
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