rick2609

hi im new here and have been reading about the spark pluges for my 20004by 4 i went down to orielys parts store to get new plugs and ask the guy what it took he said ac rapid fire and i put them in and runs great .and now in reading on your post to only put platnum in .will it hurt with the rapide fire plugs?

old_master

You'll get the best performance and fuel mileage with AC Delco platinum or double platinum plugs.