People get the idea that because they own a diesel truck, that they can abuse the hell out of it and it will last forever, and that usually mean's abusing routine maintenance like oil changes, fuel filter changes, air filter changes and so forth. Just make sure that you have a strict maintenance schedule with a good oil and filter, fuel filter, air filter, transmission filter and so on. Some people also rev it sky high in the morning to warm it up, and treat it like a gas engine by driving it 5 minutes then shutting it off. That can lead to premature wear on the engine and turbo. I'd invest in an autostart and in the morning start it up and let it idle for awhile then when you get to x let it idle for 5 minutes before shutting it down. Get in it and under it once and awhile and check for problem's like leaks, lose drive shafts, abnormal tire wear, worn suspension part's like tie rod's and pitman arms. Some also get the idea since it's a diesel engine that they can throw a programmer or tuning at it and never worry about it breaking, then 100 mile's later they have a limped transmission. If you're looking for some tuning software look into EFI live; hundred's of page's of info on this site about it. I know a guy with a 6.0 PSD who does all of bad thing's i've mentioned combined, and I am just waiting for it to mess up and have him say "you were right." With that being said don't be afraid to drive you're truck hard, it deserve's it once in and a while.
- 00 GMC sleeper jimmy. Few goodies Hehe