Seanmannino Posted October 20, 2009 Report Share Posted October 20, 2009 Okay just as the title reads, dumb if not stupid question time. I am needing to perform a Tune up on my DeVille. There are a plethora of Spark plugs out there and just want to know what brand or what not I should buy for this fine car. It's been so long since I have had to buy spark plugs and anything for a tune up I am not in the know of these products. So, what should I get? 103007 miles on the car and as momma says the highest price is not always the best. Thanks y'all! Sean M. 1997 Cadillac DeVille Link to comment Share on other sites More sharing options...
hjb981 Posted October 20, 2009 Report Share Posted October 20, 2009 AC Delco 41-950. That is the OEM plug for your car. When I changed my plugs (I also have a DeVille '97), the old ones were 41-947, but 41-950 is what they would put in today if you were to go to a Cadillac dealer to have it done. Anyway, those plugs are platinum tipped - the reason why you can leave them in for 100000 miles. Good luck! Jonas Link to comment Share on other sites More sharing options...
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