More Duramax info
my truck has 121,000. what kind of preventative maintenance should I be doing. I change the trans filter every oil change. I work out of town do my truck sits a month at a time. I change the fuel fil...
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a good fuel stablizer to prevent algae growth would be good idea...and for me if my truck sat as much as your's it would be getting the filters changed that often too...one thing to look out for if four wheel drive is the dreaded transfer case pump issue on those trucks.. i have repaired three of them from it one required a whole new t-case..as for the injectors they could go for another ten years or go out tomorrow..and depending on the year of your truck it is either terriblely hard or not to bad to change them.
