Quote:
Originally Posted by X5SilverBeast
I usually change mine on the X5 & 540 every 20-30k. Keeps it a bit cleaner. NGK only. go to oreilly auto, 10x cheaper than the dealer.
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20-30k seems like overkill on a modern BMW. By the way, I just called one of the dealers near me for a price quote on OEM NGK's and he told me BMW does not supply the NGK plug any longer. He said the Bosch plug is what is used now.