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Customer reviews for Shell Rotella T6 5W-40 Synthetic Heavy-Duty Diesel Engine Oil, 3-pack/1 gallon bottles for
Shell Rotella T6 5W-40 Synthetic Heavy-Duty Diesel Engine Oil, 3-pack/1 gallon bottles
4.8 out of 5 stars
stars
1,062 ratings838 reviews
  1. 5 stars92% (979)
  2. 4 stars3% (37)
  3. 3 stars2% (16)
  4. 2 stars0% (5)
  5. 1 star2% (25)
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Showing 51-60 of 838 reviews
May 22, 2026
Reviewer name: Rick
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great price! Better buy now as oil prices are going up!!!

Review from walmart.com
Helpful?4TT94159G0X02140040451
Mar 30, 2026
Reviewer name: Ken
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

This diesel oil has the Ford spec required for my vehicle. Full synthetic.

Review from walmart.com
Helpful?4TT94159G0X02140040451
Jul 26, 2026
Reviewer name: Anonymous
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Fair priced

Good deal for the price

Review from walmart.com
Helpful?4TT94159G0X02140040451
Jul 28, 2026
Reviewer name: anonymous
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

best price

Review from walmart.com
Helpful?4TT94159G0X02140040451
Dec 3, 2025
Reviewer name: Kipper
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great oil at a good price

Most diesel truck owners soon to go for this oil. Walmart has a good price! The free delivery is nice!

Review from walmart.com
Helpful?4TT94159G0X02140040451
Dec 14, 2025
Reviewer name: C Rendon
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Best Diesel Oil

This is the only oil I use for my F250. It's got high heat tolerance and resistance to shearing. Sam's Club also has the best price.

Helpful?4TT94159G0X02140040451
May 26, 2026
Reviewer name: Leon
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Factory recommend

Synthetic Heavy-Duty Oil

Helpful?4TT94159G0X02140040451
Jul 9, 2026
Reviewer name: Cortlandt
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Overall a good product

Review from walmart.com
Helpful?4TT94159G0X02140040451
Apr 18, 2022
Reviewer name: Gregg
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Blessed

we have looked all over for this oil. no one has it and the prices that they would have been are much higher than this price. got it very quickly and was very blessed by finding it and the price.

Helpful?4TT94159G0X02140040451
Dec 31, 2013
Reviewer name: Shinneryrat
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great for hot weather and for hard working engines

And if you take advantage of the oils ability to take care of your engine for extended oil change periods, it is the most economical. Buy oil filters designed specifically for synthetic oil and extended oil change periods and you can safely change oil every 10,000 miles. If you install a bypass oil filter in addition to your regular spin on filter you can extend your oil change periods even further. On my truck and car I change the element in my bypass filter every 5000 miles. I change my spin on filter every 10,000 miles. I also send a small sample of my oil to an oil testing lab at regular intervals to determine if I need to change oil and to determine the health of my engine. I have purposely not endorsed any products other than this oil so you can do your own research.

Review from walmart.com
Helpful?4TT94159G0X02140040451