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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
stars1,022 ratings803 reviews
  1. 5 stars92% (942)
  2. 4 stars4% (36)
  3. 3 stars2% (16)
  4. 2 stars0% (5)
  5. 1 star2% (23)
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Showing 611-620 of 803 reviews
Feb 21, 2013
Jim
5 out of 5 stars review

Shell Rotella 5w-40 T6 Synthetic for Motorcycles

This Shell Rotella T6 5w-40 Synthetic engine oil is both a quality product and very affordable for 4-stroke motorcycles which use 10w-40 conventional engine oil. After the auto supply store where I had bought conventional oil for my motorcycle raised the price to an outlandish level I found this very reasonably priced Shell Rotella synthetic oil at Walmart, and it is has the JASO-MA rating which indicates that it is also formulated for wet clutch motorcycles. I have been using it in my Kawasaki Vulcan 900 Classic LT for some time with zero oil consumption, and on my oil pressure gauge it registers according to the Kawasaki shop manual spec regarding pressure.

Review from walmart.com
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Feb 9, 2025
PaulD
5 out of 5 stars review

Yes it meets Ford WSS-M2C171-F1 specifications

Don’t let Walmart’s vehicle compatibility for Ford diesels dissuade you from purchasing for 6.7 diesels. This is absolutely compatible. Walmart indicates that it is not for my 2020 Ford 6.7 liter diese which is incorrect. It clearly states on the back of the container that it meets Ford WSS-M2C171-F1 specifications which is what a 2020 Ford Super Duty with the 6.7 liter requires

Review from walmart.com
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Sep 6, 2019
Ignatius
5 out of 5 stars review

Best 5W-30 oil currently available!

I use this oil in my car's GDI engine and I know several people who love using it in their high performance Subaru engines like that of the STi, WRX, and Forester XT. It just doesn't shear like other 5W-30 oils often do. I am very happy that Shell offers this product but it is very difficult to find in stores and usually online retailers offer it at a more premium price. I hope it is made more commonly available in the future!

Review from rotella.shell.com
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Oct 18, 2024
Studlino
5 out of 5 stars review

superman oil!!

how do i keep adding stars..its stops me at 5. I discovered t6 10w30 in desperate attempt to keep it running as a gasoline engine. not only did it keep it running it revived it reswelling gaskets and getting a superiors oil too the top of heads that completely stopped all lifter ticking, smoothed out rough running vibration, from regular oils, increased fuel economy and increased performance in a engine had i put conventional 10w30 was certainly doomed to die without T6. So when i bought my my truck it was automatic gonna run T6 5W30 and i experimented running the dealership oil, added oil catch can system within a week oil found in catch can & darkened alot and lifters we're beginning to be heard by 2weeks it had used half quart from towing. I dumped dealship oil new full synthetic filter and T6 5w30 in a 4cylinder turbo gasoline engine cleaned oil catch can.. Immediately improved lifter noise and smoothed motor running, again noticable fuel economy gains and horseplay increased, motor ran snappy and smooth the turbo stopped using oil and spooled faster smoother and oil catch can barely had oil vaper inside. ran in 6,000 miles and oil was still on good shape.. your t6 product is Top tier anyone wanting half million miles on engine this oil one of the only options best oil for my demanding driving by a longshot, keep up the excellence Shell I rave about your products to everyone!

Review from rotella.shell.com
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Oct 22, 2017
Ken
5 out of 5 stars review

T-6

Synthetic oil is always best for you vehicle. The Rotella T-6 has finally been added to Fords approved list of oils. In 2017 many vehicle manufacturers changed acceptable rating for approved oils and after much debate over the matter T-6 was added to Fords list.

Review from walmart.com
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Jan 28, 2016
David
5 out of 5 stars review

Does the job.

If you idle your diesel engine much this is your oil. It won't break down like a non synthetic oil and thin out. My 6.7L Cummins engine starts much easier in cold weather. It rolls over twice as easy. It snaps right off and does not drag even at zero degrees outside. It is going to help my batteries last much longer and reduce engine wear at start up. I do a oil and filter change every 5000 miles. My engine has 215,000 miles on it.

Review from walmart.com
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Oct 8, 2020
Nick
5 out of 5 stars review

Best oil for my custom 1991 Volvo 740 turbo

I've been using shell rotella t6 5w40 for about a year now and this oil is awesome! Run it in my 1994 jeep grand Cherokee 4.0l and my 1991 Volvo 740 turbo and the engines love it they run alot smoother and quieter and shell rotella t6 5w40 is my first choice for my vehicles for the protection of the internal parts of my engines and to keep them running strong and running long!

Review from rotella.shell.com
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Mar 9, 2018
Crop Duster
5 out of 5 stars review

Works great in my motorcycle!

I have been using this oil in my 1998 Honda F6 Valkyrie Tourer for 6 years now, and have had no issues with clutch operation. Even at full throttle with the big 6 cylinder engine, no clutch slippage. Also, the notorious Valkyrie top gear whine was a lot quieter immediately after the first oil change. It's also priced a lot cheaper than the competing oils, a nice added bonus. I don't hesitate to change the oil when I should, when the price is about half of other high end or OEM oils. It's available at many local retailers, so, it's easy to obtain. I wish it was available in other weights like 5W20. I would use it my 2010 F150 5.4L if I could, because it's really not that much more expensive than conventional oil.

Review from rotella.shell.com
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Jan 21, 2016
Theodore
5 out of 5 stars review

Great oil - best price I have found

I use this Rotella T6 in all my cars with synthetic requirement for oil. Its low weight and high viscosity - good stuff. Holds up well in my 350HP turbo application and also lasts the 7,500mi interval for my non-turbo car. I have even started trying in my motorcycle and so far seems good.

Review from walmart.com
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Oct 20, 2015
Stromlongcommute
5 out of 5 stars review

Use Rotella T6 in Suzuki DL650 V-Strom.

Used this oil in 2008 Suzuki dl650. Got 125K miles using this oil. Great for wet clutches. Oil holds up very well with 5K intervals @ highway speeds. Now on second dl650 - - plan to get 125K miles out of this one using Rotella T6. Very durable synthetic without paying $12 a quart.

Review from walmart.com
Helpful?4TT94159G0X02140040451