Any one interested in bio-diesel products or more importantly, diesel fuel conditioner check this stuff out.
http://www.milliganbiotech.com/The conditioner works pretty good; frees up a little lost hp and reduces engine wear due to low sulphur content.
They also have penetrating oil that works better than wd40.
I'm pretty sure you can get it at the road king and probably a couple other places in town.
D