Answer by Clayton53. Confidence votes 9. I had a 97 7.3 and used the green antifreeze you can purchase at any auto parts store. I don't recall if there was a Ford-specific product or not, though I can't imagine that Ford would pass up the chance to sell something like that at a greatly inflated price.he fuel pump on a 1996 Ford F3 50 power stroke 7.3 diesel engine is in the fuel tank. The fuel pump is not visible until it is removed from the fuel tank. 1 person found this useful.