Hope you don't have to much OCD . Cause Datsuns at this age leak oil. Otherwise youll have to replace the head gasket if it really bothers you. Then next oil pan gasket. ooil sender switch may leak also. then the front and real seal.
I wish I had this truck!!!!!!!!!!!!!!!!!!!
I just leave my heater ON. as it don't put out much heat anyways but enough to keep me from freezing
Going to make you wish had it even more because 99% of seals have already been replaced... head gasket the only that wasn't.
New seals including rear main, timing cover, valve cover, valve stem, and oil pan (2010)
New oil pressure switch (2016)
New front main seal (2016)
So might as well do that one and button up whatever else I can find. Also I think the heater is on already, but I would still like the switch to work. What are people doing about radios in these?