I finally got all the fluids and maintenance ( I think) done. The problem I encountered was when I started the diesel it ran fine but the head gasket appears to be leaking oil.seems worse at the front. Power seemed ok. The exhaust had just a little smoke. I know there was head work done by the previous owner and I checked the torque. The bolts were not up to spec so I torqued to spec before firing the diesel. Anyone have some thoughts?