This isnt a hot rod but maybe yall can make some sense out of it. I have a 1991 ford ranger 2.8 v6 5 spd which ran hot one day and I noticed nasty oily substance in radiator so naturally assumed head gasket gone. Ive refilled it 4 times with water only and drained it nd every time it comes out oilly with a strange smell. But heres the kicker...theres no water in my engine oil? And I haven't lost any engine oil?? So what could possibly be getting in my radiator??