i guess by now all have had to buy some of the ultra low sulfer diesel.....what do you do for pump lubrication on the older models that lubricate off of the fuel.............Personally i try and buy bio-diesel and then mix with ulsd if i can't find the bio............what is the rest of the world doing...for lubrication.................joebuzz

 

I would go with the Drew's Brew. Read about it on the FAQ section.

 

I think I'd run the brew over the bio any day of the week