Got my rear main oil seals and oil pan gasket replaced on Saturday. While I had the pan off I blew out the oil galleys and cleaned crud out of the pan. Now I will be able to run detergent oil. Put in 5 qts. of Mobil 15W40 Delvac diesel oil. Took it for a 20 mile run and no leaks so for. Yesterday I put the grill back on after painting the back side of it body color also put some bicycle tube gaskets between grill and fenders. I now will have to get some help to put hood back on. Hopefully this will be the last time I will have to do this for a long time. HAPPY 4TH TO ALL