Quote:
Originally Posted by 1990C4S
Plugs are something I often buy from the dealer....the harder they are to change, the more I play it safe.
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This is great advice. Or at least look at the old ones, (if they are factory plugs), and figure out what they are. Maybe the owner's manual will tell you what to use. Newer cars have the combination of plugs that last 100k miles and engine management systems that are super sensitive to having the right resistance from the plugs and other ignition components. Maybe you could say the same about a 1969 MGB or any motor but it's really compounded on new stuff.
I'd hate to think that I was running the wrong plugs for the next 100k miles just because I wanted to save $10 and go the Autozone instead of using OEM ones. YMMV.
EDIT: For things like spark plugs and oil filters, sometimes the dealer is no more than the FLAPS.