[DuaneW]

I am not sure if the fuel systems are rated for ulsd or not, but I'll bet they're all expensive to work on no matter the color of paint. Here is what I do in my truck AND my other diesel toys. I mix approx 1oz of marine grade 2cycle oil (Tc3w or tcw3 or ???? ) per gal of diesel OR run min 3% biodiesel. You can really tell the difference on both the Oliver and the truck, they both get MUCH quieter with either the bio or 2 cycle oil (truck is a '02 Dodge). Havent been able to detect the difference with the little massey, but a much smoother quieter engine anyway, so I just add the two cycle for insurance.

DuaneW.