2009 Chevy Duramax diesel.
I have a 2009 Chevy Duramax diesel. And I just replaced my first glow plug. Now I am useing a fuel treatment about every other tank. My mechanic said its not working. The glow plugs look pretty bad a...
Forum Discussion
Mine is a 2014 model (a bit newer), and has 30,000 miles. I don't use any kind of additive. Not sure what kind of shape mine will be in when it reaches 140,000 miles. But I would think, after 140,000 miles it might be OK to replace the glo plug.
