Spark plugs
NGK platinum - good for 60,000 miles (or more)
NGK copper - good for 30,000 miles, at about 1/4 or 1/5 the cost of platinums.
No need to use NKG Iridium. Don't use Bosch plugs.
Only use NGK plugs. Platinums don't need to be gapper. Coppers should be gapped to 0.044 I believe. If you're paying someone to install the plugs you might as well buy the platinums.
NGK copper - good for 30,000 miles, at about 1/4 or 1/5 the cost of platinums.
No need to use NKG Iridium. Don't use Bosch plugs.
Only use NGK plugs. Platinums don't need to be gapper. Coppers should be gapped to 0.044 I believe. If you're paying someone to install the plugs you might as well buy the platinums.
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