Spark plugs... NGK6458 vs. NGK6437
#1
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Is there a good reason to spend $15 per plug instead of $5 per plug on a stock 1.8T?
Been getting random CEL (misfires/knock) in the cold and want to start with plugs. Someone just replaced mine, but used cheapo American plugs and I think that might be part of my problem. If that doesn't work, I'll try coils next (start cheap and work my way up I figure).
Been getting random CEL (misfires/knock) in the cold and want to start with plugs. Someone just replaced mine, but used cheapo American plugs and I think that might be part of my problem. If that doesn't work, I'll try coils next (start cheap and work my way up I figure).
#4
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figure out what cylinder and replace that coil. You might want to buy two and have one for a spare because they randomly go.
With those plugs you need to replace them every 5k, I do mine with every oil change.
With those plugs you need to replace them every 5k, I do mine with every oil change.