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b234f Spark Plug Heat Range 700 1990

posted by  yabum on  Thu Aug 29 08:14 CST 2002
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I have two cylinders which show some oil fouling and two which look fine. I was going to install autolite 63's (the normal autolite plug for this car ) in the two good cylinders and 64's (one heat range hotter) in the two which show signs of fouling. This is a city car but see's some occasional expressway commuting here in Dallas where it gets quite warm some days. Does anyone know of a reason why I shouldn't go to a hotter plug, or to a hotter plug just on two cylinders,







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