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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
1,076 ratings846 reviews
  1. 5 stars92% (991)
  2. 4 stars4% (39)
  3. 3 stars1% (16)
  4. 2 stars0% (5)
  5. 1 star2% (25)
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Showing 301-310 of 846 reviews
Nov 2, 2012
Reviewer name: Jon
5 out of 5 stars
5 out of 5 stars review

Very Good Motorcycle Oil

Rotella T-6 is a sleeper in the motorcycle world. I have run it in an XR250 dirt bike off road (which is a serious test of how it works in a wet clutch.), a Honda VFR800 sport bike and a Honda Shadow cruiser. Zero problems or issues of any kind. Blackstone lab analysis showed a very good additive package and essentially zero wear after a hard run in the sport bike. This oil is JASO MA rated for wet clutches. The price is a bargain relative to "motorcycle oils". Being a 5W-40 this oil starts easier in cold weather than petro oils. I also use it in a generator and my gas powered pick up truck. This is possibly the most versatile motor oil made. Excellent stuff. (No... I don't work for Shell oil !!)

Review from walmart.com
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Oct 18, 2022
Reviewer name: HCB007
5 out of 5 stars
5 out of 5 stars review

Zero problems with this oil!

I've used the Rotella T6 5w-40 for years and years in motorcycles with wet clutches, trucks, and tractors and had no problems. Most notably I've used it in: 2004 Honda Shadow Sabre 1100 (wet clutch) and put 30k+ miles on it and I used it in my 2011 F-150 for it's entire life (bought new). The F-150 is impressive because it had the 3.5L Ecoboost, the first year of that engine, and I put over 218k miles on it with nothing done to the engine except oil changes and spark plug changes. I also use this in my tractors, I used it in my 2002 Dodge 2500 with the Cummins (bought new, sold at 168k miles), and other vehicles. I love this oil.

Review from rotella.shell.com
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Oct 18, 2024
Reviewer name: Studlino
5 out of 5 stars
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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Sep 28, 2017
Reviewer name: Nickname
4 out of 5 stars
4 out of 5 stars review

It's been working.

I use it in a 2007 Honda Rancher ES and it always starts right up like a champ. No slippage nothing I can't complain. I drive this bike hard and change the oil once per year or longer. Checked it the other day after like 13 months still looks ok could use a change so I'm going to do it. I'll probably use Rotella T6 again. It seems to be good stuff.

Review from rotella.shell.com
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Jan 29, 2017
Reviewer name: Fishingdude
3 out of 5 stars
3 out of 5 stars review

Works great but smells terrible

My cummins has a PCV system which is simply a tube discharging to atmosphere around the oil pan. (04 common rail). There's no significant blowby - but after running the truck and coming to a stop - the smell of the offgassing engine oil is potent. Has that smell of gear oil. So when I come to a stop - I have to turn the HVAC off - otherwise it'll stink up the cab. A quick internet search found "RoSmella" as the common nickname... Ha ha! I hoped it would go away after a few miles - but at 2000 miles so far - it still stinks. I'll have to try something else next time. From a lubrication/functionality standpoint - it seems to be just fine.

Review from walmart.com
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Jun 20, 2018
Reviewer name: Snake
5 out of 5 stars
5 out of 5 stars review

The best

I have been running shell oil since I bought my duramax in 2002, the truck has been used for construction in northern Alberta in the oilfield it’s entire life. Big trailers, -30C morning starts, working lots of hours , Shell’s fluids have never let me down. The truck has 800000 km- 12000 engine hours on it and the engine runs as good as it did the day I drove it off the lot. Doesn’t use any oil at all from oil change to oil change. I Switched to t6 at 400000km and run the 5w40 year round. I change oil every 5-6000 km. If your looking for the best fluids to run in your diesel pick up this is it.

Review from rotella.shell.com
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Sep 16, 2017
Reviewer name: DAVID
5 out of 5 stars
5 out of 5 stars review

EXCELLENT PRODUCT

I've been using T6 in my 2005 Kawasaki Vulcan 1500 after my first oil change, this oil takes the heat and keeps the inside of the motor spotless. No clutch slippage at all. The perfect oil weight to get into the tight clearances and reduce the 50w power and mileage rober.

Review from rotella.shell.com
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Feb 9, 2022
Reviewer name: Azazel
5 out of 5 stars
5 out of 5 stars review

Excellent Oil

After hearing and reading rave reviews on this oil, and reading posts about it on oil-focused sites and forums, I thought I would give it a try. Im running it in my 04 Grand Caravan with the 3.3L V6. Running a half-and-half mix of 5w-40 and 15w-40. Let me say this, my van has never ran so well just by changing the brand and type of oil I am using. It currently has 209k on it and runs like a top. I switched to diesel oil because it has a higher film strength, better wear packs, and better detergent packs than gas oil does. I want my van to run as long as possible. I am one of those people that drives a vehicle until the wheels fall off, so they say. Ive used other brands before and they have worked well, however, since changing to Rotella T6, my van has more power and response than I ever remember it having. Rotella and other Shell products will be my only brand now. Stocked up on quite a bit of Rotella in all its major types, T4, T5, T6.

Review from rotella.shell.com
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May 8, 2020
Reviewer name: Tom in NC
5 out of 5 stars
5 out of 5 stars review

Off-Label use in Gasoline engine

In 2002, I purchased a new Volkswagen GTI with a 200 hp 2.8 liter V6 engine. The manual advised the use of 5W-30, but preferred 5W-40. I did not live near a metro area and the only 5W-40 I could find was Rotella T. I have used this oil ever since and never had an oil related problem. The engine does not use oil, so I never have to top up between 5000 mile oil changes. I had to change the valve cover gasket recently and was pleased to find no shellacking inside the head or valve cover. What residue was there could be wiped away with a cloth.

Review from rotella.shell.com
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Jan 28, 2016
Reviewer name: David
5 out of 5 stars
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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