I've been using this oil for 100K+ miles and have had no issues. I change my oil at 5-6K intervals and also keep an eye on the Sam's Club instant savings at which time I stock up.

I’ve been using Rotella oil in all of my trucks for over 15 years. I’ve always had longevity with my diesel engines so, I continue to use what works for me.

I spend almost twice as much on this at other stores. I will be getting it from here from now on and they had it ready for me the next day after I ordered .

Best oil out there for semi diesel trucks. Husband have been in the owner-operator business for decades. Best price he's have ever seen. Unbelievable, wish I could have purchased more than 5 cases. Delivery was prompt. Thanks Sam's Club!!!

Sad how much the owaso sams scams us, we pay a membership for access to bulk items at bulk pricing but not in owasso and not just oil check your prices people

Good Quality

Great

Good deals

Ordering was easy and delivery was prompt with the cases in good shape (and best of all the delivery was free!).

Been using this product in my 7.3 diesel for 250,000 miles. Engine is still toght and does not produce excess smoke.