[Chris1529]

What about the newer trucks with the particulate filter? I don't think I would try too much in them.

One guy I work with has an '03 duramax. he makes the french fry oil diesel fuel. he runs amsoil additive in it in the winter. was -2 here this morning
has an edge programmer on it too.
he made 160 gal and headed with a 3 horse trailer to wyoming last year, and tows a large fifth wheel camper some too. seems to be working well.
looks like a still in his garage though and you have to pick up the oil whenever restaurants set it out.