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[Draw17]

I have noticed a considerable drop in fuel mileage since they switched to the ULSD around the first of the year. I have also had other fuel system issues such as the drain cock on my filter going bad and my inline fuel pump leaking on startup. When I mentioned these things to my local Ford Dealer he was able to pull up how many he has sold every year for the past several years, interestingly he said that in the past 6 months he has sold more of the drain cocks for the 99-03 fords then he had previously combined. There is little I can do about the ULSD now that it is here but equip my truck for it. I have heard that different type seals like those used for bio-diesel help and there are several additives as well. A personal favorite mixture of mine that I have used for the past 8 months with sucess is 20 Oz of Power Service mixed with 20oz of Marvel Mystery oil and 1 Quart of two stroke (injector quality). I usually mix these up ahead of time and have several containers in my truck at all times. I have notices a slight increase in mileage but more noticably because I started using this once I bought the truck, a drop when I dont use it. A old timer got me hooked on the two stroke, this is what he said when I told him about using ATF for lubrication. He asked me if I would run a two stroke engine on ATF, his point was that two stroke is MADE to lubricate fuel systems whereas ATF isnt. The two-stroke oil makes sense to me. Just be sure that it is safe for injection systems.