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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 71-80 of 838 reviews
Sep 2, 2020
Reviewer name: DirtPusher
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

A good oil for modern diesel engines

Do you have a modern diesel engine? Consider this Group III oil for your lubrication needs. This is a full 'synthetic' oil that is Diesel Particle Filter friendly to control emissions. The 5w-40 oil is good for a cold start and provides protection when at running temperature.

Review from walmart.com
Helpful?4TT94159G0X02140040451
May 21, 2014
Reviewer name: Gpatter341
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Excellent motor oil...many uses

I use this oil in the last 3 Goldwing motorcycles I have owned. I change oil every 5,000 miles. The oil has at least 5,000 miles remaining on it when drained. I am sure I could go another 5,000, but it has become a habit to change at those intervals.

Review from walmart.com
Helpful?4TT94159G0X02140040451
Oct 29, 2024
Reviewer name: John
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Best synthetic oil for old engines.

This is the best oil on the market to use on old, worn gas engines. Yes gas engines. Diesel oil has far more detergent in it than other high shelf gas oils and cleans engine internals and piston rings very well. By using this alone without doing anything else, it literally cut the oil consumption on my old audi 1.8t by more than half. The engine has over 250K miles on it and was consuming about 1 qt every 750 miles. Now it only uses about 1.5 gts every 2000 miles and I change it at 3000. For the last half qt top off I use marvel mystery oil for about the last 1000 miles of an OCI. My car no longer smokes and no longer has a burning oil smell. I am extremely pleased with this product.

Review from walmart.com
Helpful?4TT94159G0X02140040451
May 31, 2023
Reviewer name: Dawn
2 out of 5 stars
2 out of 5 stars review

Verified Purchase

It’s disappointing that an expensive delivery such as this is essentially left by the road side. This particular Fedex driver recommended I get a drop box, so I did. She still dumps the packages right next to it. Fedex isn’t putting Walmart in a favorable light.

Review from walmart.com
Helpful?4TT94159G0X02140040451
Aug 27, 2024
Reviewer name: M G Rocket
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

The Gold Standard Oil for Diesel Engines?

Rosella seems to be the gold standard for diesel engines. From my way of thinking, the T-6 formula has been tuned for maximum protection for diesel engines. The 5W-40 rating would suggest it has been developed as an all season oil. As you can tell by my vagueness, I cannot prove any of these points, it is just my opinion.

Helpful?4TT94159G0X02140040451
Oct 1, 2020
Reviewer name: Johnny
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Excellent ATV and Motorcycle Oil.

This oil came highly recommended to me by an Atv mechanic for use in my Honda 500 Foremans and Honda 420 Ranchers. I did plenty of research and found that many Atv enthusiasts prefer the full synthetic T6 oils such as Rotella. This oil meets all JASO MA requirements for Motorcycle and Atv wet clutches . JASO MA is the standard for single unit engines where the wet clutch, gearbox and engine used the same oil. JASO-MA oils dont contain friction modifiers that will cause a wet clutch to slip Seems like excellent oil so far. I have also noticed that the engine cooling fan does not come on nearly as much as when I was running standard oils. I will be staying with Rotella 5w-40 T6 for all of my Atvs from here on.

Review from walmart.com
Helpful?4TT94159G0X02140040451
Sep 17, 2020
Reviewer name: John
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

The best choice for me and my Ford 150 powerstroke

I own a 2018 Ford 150 Diesel 3.0. Meets all the requirements (CK-4, and more) by the manufacturer to keep it under warranty. I use the 5w-40 because it is recommended in the owners manual if using bio-diesel or under harsh conditions. Use the ford filter from ROCKAUTO, Good price if you buy 6 . Shipping adds $1 to each. Well worth it. Walmart does not carry the filter for this engine. Always great results with Shell Rotella. Chevron DELO did not have the correct amount of additives needed based on my research from the ford spec sheet when I started to change the oil myself. Maybe it does now... I never looked back at it. Staying with the same thing going forward.

Review from walmart.com
Helpful?4TT94159G0X02140040451
Jan 23, 2024
Reviewer name: WalUser
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

[This review was collected as part of a promotion.] Excellent product and your on-line price is very good. You should carry the single quarts too. This product has a strong following among the automotive crowd and it's often in short supply in your stores. Stock more and you'll sell more.

Review from walmart.com
Helpful?4TT94159G0X02140040451
Dec 28, 2020
Reviewer name: JIM
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

You deserve to have the best.

Been around diesel equipment for forty years and have tried other oils but have always gone back to shell Rotella. Check truckers websites, read articles about diesel oils. I would not but anything in my diesel engine except Rotella now for the best grade T6 is what you want .

Review from walmart.com
Helpful?4TT94159G0X02140040451
Jul 5, 2025
Reviewer name: b
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Excellent all-around oil both clean %26 holds up!

Excellent Clean Formula oil as full synthetic with xtra vitamins for hard working engines! Great in a wide variety of applications from year round small engines to turbo diesel tractors and trucks. Helps aid in easy starting with solid protection at higher temps and loads. Consult your manufacturer before using in place of any recommended oils.

Review from walmart.com
Helpful?4TT94159G0X02140040451