BigRigTech
Diesel junky
I doubt you'll have any gelling issues....Maybe put some ATF in the mix to keep everything mixed....I have 2 of those 300gal cubes too but I can get oil anytime I want so it's easier for me to just bring it home a little at a time as I need it. When I fill up this week I'm going to try about 30% waste oil in each tank seeing as the temp's are finally starting to warm up around here.

.....Crooked ********.
....My truck is due for a fillup too. Now I'm putting my WMO setup plans into full speed ahead. I have a dual filter head here - the F-inlaw is taking it to work with him in the morning at CAT to fit it for 2 micron fuel filters. I'll buy an air tank at work to use as a pressure tank to put the oil through the filters. I'm going to fill some jerry cans with clean oil for my bi-weekly fillup. My buddy with the transmission shop is going to save me some clean tranny fluid if I provide the buckets. What kind of ratio are you mixing with the ATF??? I won't be burning diesel oil - too much soot but ATF and gas engine waste oil is a go.