I have a diesel tractor that purrs like a kitten. (Ford 3000). I recently acquired an Oliver Super 55 that had been sitting for years. All the fuel lines were full of black goo and there was a ball of black goo about the size of a grape fruit in the fuel tank. The Oliver is at the mechanic for an overhaul so it is not the issue.
I have put a couple of tanks of gas station diesel through the Ford. I am now told this is a bad idea. I have access to "real diesel so I will cease using the bio stuff.
The question is what to do with the Ford? Should I siphon out the gas station diesel? Is there an additive I should put in? Any advice appreciated. Thanks