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MY TRUCK HAS 69,000 AND ONLY HAD GLOW PLUGS GO OUT, HOWEVER I HAVE RUN ADDITIVES ON EVERY DIESEL I HAVE OWNED FOR YEARS AND ZERO ISSUES, SINCE OUR FUEL IS 15 PPM OR LESS I THINK EXTRA LUBE IS THE ANNSWER
Do you know if the code for the bad glow plug clears on its own. I just changed all of mine and the code cant be cleared with a normal reader.
 

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I cleared glow plug code and they just come back, they go under the power train warranty I think till 100,000, they replaced all of mine over a two year period
 
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