That valve he is refering to is built in the oil pump & is in the oil pan. You could put a master gauge on it & see how high it acually goes. I would go to a lighter weight oil like 10-40 or 10-30 if your engine is in good shape.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne Super In the Gallery Forum