Ratings & Reviews for Shell Rotella Rotella T6 15W40 Synthetic Diesel Engine Oil 1 Gallon

Excellent oil at an excellent price!

Been using 5W-30 Advanced Durability conventional oil in my supercharged Buick Park Avenue for 25k miles since owning the car. Not one single problem and the oil runs quiet and smooth. No matter if it's 100 degrees above or below zero in the dead of winter, car starts and runs smoothly every time! What's better is QS oil is priced a lot cheaper than the rest and works just as good! I expect to get several more thousand miles out of this car and engine before it gets traded in for something e...

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 resid...

2009 Yamaha R1 crossplane engine oil

Started using this in my 09 R1 after only running Yamalube since day one. The bike runs great. No issues with the clutch. Great price vs Yamalube. Plan to keep using Rotella T6.

Awesome oil

Use in my 2008 f150 had a cam phazer bad i mean bad so bad engine would stall. put 0w40 in disappered. Gone. Run up to 16000k between changes.

2004 Suburban Running Great

My oil pressure is sitting back up where I like it and reduced engine noise especially on cold starts. Engine sounds much better over all.

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!

Terrible oil, switched from Mobil Syn to Quaker

The oil literally made my car smoke. I took it out two weeks later went back to Mobil 1 no smoke. Don't believe the hype!

Used it for many years.

Bought a 2008 focus brand new. The only motor oil I use. I change it every 4000 miles.

Does what it says!

I bought this for my truck and it keeps it running smooth.

Good oil

I have been using this oil for 3 years and it works great

Best of the best

Iv ran a few different oils in my race bikes and ever since the switch from A recommendation from my father that has a gold wing with 90,000 miles no issues my race engines show very very minimal wear and tear in between seasons

Awesome oil

Truck runs better that I changed the oil and went with Quaker state. Will never use another oil

Best bang for your Motorcycle Buck.

Used T6 in my 2007 FZ1 since I bought it used about four years ago. I rev this bike to the Max, never had a single engine problem, doesn't run hot, uses zero oil in between changes. I understand that it shears easily in a wet clutch situation (as do many oils) so I change it as I reach about 1k or 1.2k miles that way the engine always gets fresh oil. It's cheap and not that hard to change oil and filter. I only ride for fun so I change it maybe a couple of times a year.

Quality over greed.

Every time I go on Youtube to see oil comparisons the only oils that I see are Mobil1, Pennzoil, Castrol GTX, Valvoline but I never see Quaker State in any of them because none of them compare to QS..I use your conventional oil as well as your synthetic oil, both are great. I drive a 2011 Dodge Nitro Heat, 4.0 litre engine and it makes my engine run smooth and it accelerates very quickly. when I go shopping for oil, your oil is priced way below the other major brands and that to me is a testamen...

So far so good!

I've only been using Quaker State Ultimate Durability for a year in my truck and my wife's car, and so far no problems. I changed it two days ago in my truck and will change my wife's oil this evening. I switched from Valvoline due to price, and so far I've had no problems using QSUD. Thank you!

Good Oil

I have been using the Rotella T4 15w40 in my Honda Goldwing GL1100 for a number of years. Smooth transmission and no clutch slip. 82000 miles done and no problems. The T4 along with T6 is JASO MA2 compliant.

Trusted for all of my engines.

I use Rotella T6 in everything. Currently running in my John Deere 180 with a Kawasaki motor, Kubota BX2370 tractor, Ford Explorer 4x4 mud truck, Chevrolet 5.3, and even a 2017 Subaru Legacy! Can't beat the performance.

None Better!

Quaker State has been a family tradition since the 60's. My dad always used Quaker State in everything from mowers to his cars and trucks. I remember when it was called by names indicating an inferior product, but have never seen anything but great results from Q products. I am an avid fan of Quaker State and it goes in all my engines. It will continue to be my go to oil as long as it's continues to be produced. Thanks for a great product! .

Excellent Motor Oil for ALL My Vehicles

This is a truly excellent oil that has the ratings and approvals for all my vehicles, gasoline, diesel, air and liquid cooled. Rotella T6 is the only oil I buy for my cars, trucks, tractors, ATV's, UTV's, ZTR's, gasoline and diesel powered generators, a power washer, log splitter and other small gasoline, air cooled engines, basically everything except 2-stroke gasoline engines. I love only having to buy one engine oil.

Great Oil for my 2002 Ford Super Duty with the 7.3

I think that this one of the best oils on the market for trucks like mine as well as all of the new ones being built today. Why should we not use all of the newer oils to make our older Diesels last longer, if they help the new trucks, they should really help our older trucks that have some age on them and are still being used every day, for work, pleasure driving an just to have around. Mine has 268000 miles on it and I hope to put a Million Miles on it, if I live that long.