The rotella oil my family has the most experience with is Shell Rotella. Now called T4. Ive personally seen 130hp turbo case tractors burning a few qts of oil a day doing hay and silage with valvoline, delo, mobil, gulf and others. Then switch to rotella and oil consumption go way down to a quart every 50 hrs. Thats a huge difference. On the farm we have several tractors with 6,000 to 18000 hrs and finally had 1 lost a turbo last year (compressor wheel blew apart). Thats not a oil issue tho. Several trucks with 300-500k on the clock and still not using any meaningful amount of oil. I remember a few years ago we bought a JD 2940 with 5500hrs. Engine was hammering bad. We rebuilt it had crank turned all new bearings new pistons, rings, liners and all. We ran it for a couple years then decided to sell it. Engine never burnt oil with us when we sold it to a local farmer with a 12 month engine warranty. The guy came back after a couple hundred hours and a oil change complaining about oil use. He switched to his favorite oil valvoline. He said he was using upwards of 4 qts a day running a silage bagger. He said something had to be wrong. We changed oil and filters back to wix filters and rotella oil use went back to nothing worth mentioning. He was shocked, i was also when i cut his filters apart and saw glitter. I still had the filters from the pm when we sold it (no glitter) i had him bring me the next pms filters back and there was tiny tiny amount of glitter (probably leftover from his valvoline pm) long story short i feel that rotella T4 is my oil of choice for diesels. I have no experience with any of the other rotella diesel oils tho.
