GM Dealerships only carry iridium spark plugs now????
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Cadillac DTS Forum - 2006 through 2012 Discussion, GM Dealerships only carry iridium spark plugs now???? in Past Cadillac Vehicle Discussion; Almost time for a tune up and I heard that GM dealerships only stock iridium spark plugs now. Not sure ...
  1. #1
    tjwhite721's Avatar
    tjwhite721 is offline Cadillac Owners Fanatic
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    GM Dealerships only carry iridium spark plugs now????

    Almost time for a tune up and I heard that GM dealerships only stock iridium spark plugs now. Not sure how true that is, but supposedly they made a switch from platinum to iridium spark plugs a few years ago and that's all is stock. When they entered in my vin #, the ac delco iridium spark plug comes up.

    Any thoughts on this? Should I switch to the new GM recommended plug or buy the ACDelco 41-987 Professional Platinum Spark Plug?

    Thanks!

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  3. #2
    Atavar is offline Cadillac Owners Fanatic
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    Re: GM Dealerships only carry iridium spark plugs now????

    If you are under warranty I would go with what the dealer recommends.

  4. #3
    Superjim's Avatar
    Superjim is offline Cadillac Owners Connoisseur
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    Re: GM Dealerships only carry iridium spark plugs now????

    I ordered mine from Amazon....
    .
    .
    tjwhite721 likes this.

  5. #4
    billbill1 is offline Cadillac Owners Member
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    Re: GM Dealerships only carry iridium spark plugs now????

    Like Superjim I ordered my iridium spark plugs, from Amazon.com.
    Good price , free delivery w/Pime.
    I changed my plugs at 100K, and didn't do anything else, to the engine, but
    the performance increase was significant. Iridium spark plugs, or Magic, your guess
    is as good as mine.

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    Stepside is offline Cadillac Owners Enthusiast
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    Re: GM Dealerships only carry iridium spark plugs now????

    I think you'll find iridium last longer than platinum

  7. #6
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    tjwhite721 is offline Cadillac Owners Fanatic
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    Re: GM Dealerships only carry iridium spark plugs now????

    Thanks for the responses. Sorry I took a while, had a death in the family. I will replace with the AC delcos Professional Platinum's.

  8. #7
    Superjim's Avatar
    Superjim is offline Cadillac Owners Connoisseur
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    Re: GM Dealerships only carry iridium spark plugs now????

    Quote Originally Posted by tjwhite721 View Post
    Thanks for the responses. Sorry I took a while, had a death in the family. I will replace with the AC delcos Professional Platinum's.
    I need to change mine...
    Over 132,000 and still on the original plugs...
    I bought the set that is in the picture several months ago... LOL

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