I purchased a 1981 300TD wagon recently, with a pretty nice overall body, just a horrible paint job. Interior is very clean. The odometer stopped at 197000 so no telling how many miles it has on it. I noticed it to be leaking a little bit of oil so I asked my friend the mechanic to analyze it and figure it out. He told me 2 of my gaskets(crankcase? and valve cover)needed to be changed, but he only changed one (Valve cover). The amount of oil my car had been leaking increased. So I take it back and we open up the air filter and there was a considerable amount of oil in there. He tells me that there is a lot of blow by happening within the engine the only way to fix it is to drop a new engine in there. The car to me runs pretty good, not really any rough shifting, starts right up. I want this thing to be my daily driver (Far commute) last awhile. Would it be wise to drop a different motor in there? Or just continue to let my car leak oil? Suggestions on what would be the best route for me to take... Thanks for all the help...