On Thu, Dec 08, 2005 at 06:52:46AM -0500, Bob DuPuy wrote: > Hey fellow Dieselers, > Will occasionally running high sulfur diesel in a 2005 Ford power > choke do any harm? I figured Ford has to say don't do it due to > emission restrictions, but is there really a compatibility problem > with the engine components?
Ford released a bulletin (and I don't have it handy) saying that the powerchoke would be okay with minimal use of high sulfur diesel. It isn't as much emissions restrictions (since powerchokes don't have very few particulates due to design unless you chip it and exchange longevity for power), but all the fine passages and the ungodly expensive catalytic that don't appreciate the extra sulfur, which comes out as soot. Also don't forget that powerchokes have EGR built in. This bulletin only came out because of fuel shortages predicted due to the 1-2 punch the gulf's petroleum system received this season - they would not have otherwise released this bulletin. Ford has other bulletins out for troubleshooting that points to poor quality fuel (meaning higher sulfur than it should have) causing most driveability complaints causing emissions systems to go wonky. I think I know what you are trying to do, it's not worth it. The 6.0 is so much more fussy than the 7.3 it replaced, and parts are more expensive by orders of magnitude. K
