Walmart made it easy and cost effective to place an order and get delivery of Shell Rotella. Have used and will continue to use Walmart as the source for this product. Shell Rotella T6 has performed wonderfully in my RAM 250 and have used it for 10 years. Technical reviews of T6 appear to be spot on. Get it - your truck or diesel engine will thank you!

This is the only oil I run in my Cummins. My old 5.9L has a bypass filter on it, and I would run this oil for 20 to 25 thousand miles before changing. It currently has 230,000 miles in it, running strong and not burning any oil. Now I have a 6.7L. No bypass filter on it so I go by regular oil changes. This is proven oil that just works. Nice peace of mind for my expensive Cummins!

This oil is excellent ! Have used it and continue to use it in all my Subi's (Subarus) with every oil change. I have owned 3 of them ! It provides the protection required by these high performance engines and more. Keep my engines run smoothly and clean ! Excellent choice and can't beat the price !

Rotella 5W-40 full synethic is an excellent diesel oil. I've used it for 24 years and have had no issues.

Been putting this in my 2020 F-350 6.7 diesel and it has been great! I tow most days for work so I knew I needed something heavy duty and the truck runs nice and smooth on this oil!

My husband has been using this oil on our Ford F350 for a while now and it’s the only one he likes. The engine runs smooth and quiet every time. We’ve had no issues at all and the quality is consistent. Definitely our go-to oil.

This oil is approved for the 2014-up Ram and Jeep Ecodiesel engines which used to require Penzoil Euro at $9-$10/quart. This meets mfg. requirements for low ash and proper lubrication for around half the price.

t This oil stays clear and clean in my 2012 Ram 2500 6.7l diesel longer than most other brands. My Ram has over 300k miles and still runs great. I change my oil every 5-6k miles along with the fuel filter and could surely could go longer between changes based on the way the oil looks.

For us, the best oil for our diesel truck

Do not buy online, comes in a huge loose bag with jugs just thrown loosely in, upside down, sideways, tossed around, which causes them to leak and make a mess!