Fuel Question

[ulhpilot]

I'm going to start a restoration on my wrecked '92 DB2 equipped K2500 in the near future. While I have the engine out for glow plugs, injectors, and cooling mods, should I make any modification to address the Ultra Low sulfur fuel issue?
Thanks,
Mick

[DmaxMaverick]

Short of improving your fuel quality with additives, there's really nothing you can do. You can replace your IP with a military pump, or have your pump built to the military spec, but they are costly. The military pumps are built to withstand fuels with a much lower lubricity, like straight kerosene and JP fuels. You'll be money ahead keeping your fuel up to quality, and take a chance you won't have problems. It costs about the same to build up a dead pump as a live one.

The ULSD isn't any more chemically abusive on the system than previous fuels. It is just lacking lubricity in comparison.