i assume from reading wmo is waste motor oil, i have a 7.3 idi diesel, and i am a maint man at a foundry, i take care of 30 diesel forklifts serviceing them every 200hrs , with a service it gets an oil change and the trans fluid changed..and it all gets dumped into a 55 gal drum, there might ever be a bit of hyd oil in there too....how would this combo do?, i know when i change fuel filters on the diesels i always use tranny fluid to fill the filter