I just used my normal car washing soap with warm water on the cold engine. It didnt get the grease off the engine but the intake and turbo hoses and all the other hoses look great. I put some armor all on them and they really shine. The car is still running fine.

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W126 1983 300SD 286,000 miles and ticking
Baby blue exterior Grey MB tex
Recent work:
Replaced air cleaner mounting brackets and heat shields
Replaced alternator, fan and power steering belts
Replaced positive battery terminal
Replaced negative battery terminal and cord
New Duralast Battery

My car needs work.