[This review was collected as part of a promotion.] Recently began using this product for my vehicle since it significantly improves the engine. The discount Walmart provided was exceptionally amazing since it is pricey.

When using it for years looks after my diesel engine doesnt bWhen using it for years looks after my diesel engine doesnt break down like normal regular ouls

Great full synthetic oil for a reasonable price. I use it in my motocross dirt bike, my ram 2500 diesel, and my any small engines I have around the shop. It meets JASO-MA2 specifications for motorcycle wet clutch use.

I've been using this oil in all of my vehicles for years and recommend it highly. Currently, I'm driving a 2016 Ram 3500 with 120K miles and it runs like a champ.

Tried this oil versus Valvoline Blue 10W30 and Valvoline is better. Valvoline oil offered better MPGs and did not produce such a strong oil odor from tail pipe emissions. Valvoline Blue is still superior over Rotella.

Stock this at all Sams please! I use this oil and unfortunately its hit or miss if Sams stocks this, im always traveling so its nice when it is available.

I use this synthetic oil in my motorcycle because it has the certifications for wet clutch application. Way better price than HD, Castrol, or BMW branded oil.

whats wrong?why my parcel so late.after 2 days you show that your parcel delay.this massege show two times .my parcel deliever date 20 july but now 22 july you said that this is delay .plz deliever my parcel today .this is really disappionted me.

I like the fact that Walmart stocks Rotella T6 5w40. I really like the performance of this full synthetic oil for my Ford F350. I would like to see better cost savings if possible but overall satisfied by offering.

I like the 5W low number because I sometimes drive my truck in cold temperatures and that helps with cold starts. The only issue is my truck needs 10 quarts. When the 10 quart container is not available, finding 1 qt bottle is really difficult.