Hey guys, Did an oil change on the DRZ400 with the white jug of Rotella 15w40 I had sitting in the garage, since everyone seems to always default to it. I also have Rotella T6 5w40 that i used to run in my Ninja before I sold it, but I opted for the heavier weight this time. I've looked around, b. First post here so forgive me if this has been addressed. I drive a 2017 Ram 1500 EcoDiesel and always use Rotella T6 5w40 . I have always bought my oil and filters from Amazon. Change my oil at around 10k miles. It’s been about 6 months or so. Drove the truck back home to visit for the holidays (1,100 mile drive each way). Rotella T6 5W40 SCORE! Thread starter davidb1841; Start date Apr 11, 2022; Apr 11, 2022 #1 davidb1841 Built Ford Tough 11/5/2019 !!!!! Joined Feb 19, 2020 Messages ... An employee at autozone told me that certain distributors of T6 5W-40 are buying and holding massive quantities to create the demand for it. May 1, 2022 #9.