Thanks for the reply. Right after I posted the message I was outside looking over the car and looked under it and noticed both the radiator drain and the crankcase drain. The block drain is not very evident for the casual explorer, though.
Thanks again, I will be looking for the block drain this weekend.
1980 Mercedes 300 SD
1994 Ford F-350 7.3 liter turbo diesel
1993 Chevy Suburban