Think My Headgasket is Going
Today I took my radiator cap off and I had a black film on the cap. So I cleaned it off and went for a drive and came back and let it cool and there was black film on the cap again. I then left the cap off and ran the truck for awhile and I could see and oily film skittering back and forth in the coolant. Has anyone done a head gasket on their 7.3? Mine has 225,000 miles. Its pretty much stock except for a superchip, intake and a downpipe. Whats your guys's thoughts. Should I keep running it or fix it or sell it? Will I run into problems right away?