not for sure was looking at getting a cheap towrig. 180k 2wd 5 speed reg cab beat to crap. but no oil leaks or no rust. just wondering if it was head gasket. he also said that when he tries to start it, it takes a long long time and fills the parking lot with smoke. he took it to a mechanic and they said an injector is bad. i am a diesel mechanic on large diesels and never seen an injector do that. btw if you haven't noticed i am looking at buying this from someone.