Jun 8, 2010 #1 J jimmy Member Joined May 16, 2008 Messages 579 Reaction score 0 Points 16 what kind of spark plug should i use for my 2004 chevrolet trailblazer 2wd v6?i'm using ac delco now or bosch is better?
what kind of spark plug should i use for my 2004 chevrolet trailblazer 2wd v6?i'm using ac delco now or bosch is better?