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.

I had read around on the forums about this oil being used in motorcycles sominthought I'd try it out. It is JASO approved which means its good for wet clutches. This is a full synthetic and it only ran me $17(on sale) for 4 quarts! Great deal!!! Works great, and I've noticed a much smoother ride and better shifting since the change. If its made for diesels, I know it can handle my CBR600RR

I have a 2016 F250 with the 6.7L Diesel motor and I use Rotella T6 every 6K miles. I use the truck to tow a two horse trailer and it never has any issue with getting hot or excessive fuel consumption. At the oil change interval I inspect the oil coming out of the oil pan and it still has a good viscosity to it as well as it doesn't smell burnt. I will continue to use this oil until I either get a new truck or the tires fall of this one!

I've used this in my Duramax pickup since 2004. I has helped keep my engine like new. I bought a V-4 Honda motorcycle four years ago and was pleased that the ST Owners forum recommended this same oil. After 50,000 miles in less than four years my ST performs like new.

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.

I have been using this in my 3.0L EcoDiesel since the first oil change; better oil pressure than the OEM oil, and Chrysler has since made this the recommended oil for that engine. 10K mile oil change intervals, doesn't use a drop. Starts fine in cold weather too (only down to -10F here in Texas...). PS: I cannot imagine why someone would use a Diesel oil in a motorcycle.

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.

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.

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.

I have a Kawasaki 1500, model year 2000. I switched to this oil because someone with a similar motorcycle tried it and liked it. Major reason for me switching to this is because it was a full synthetic and very reasonably priced compared to other full synthetic motorcycle oils. I've put on 2000 miles since my oil change and I have started to notice severe clutch slippage. At first it was barely noticeable but as of right now, I have a hard time getting on the interstate without it slipping. Now, whether it is due to the recent oil change or some other Factor, I'm not sure if I would recommend this oil for anyone to use in a wet clutch motorcycle or not.