This is the best heavy duty engine oil on the market. Can't beat the price of if at Walmart. They always have it in Stock and lots of it. The free shipping only makes it easier. Fast and free delivery.

Was great oil leaked out which is typical during shipping so you can't blame Walmart but be prepared to wait it took one week to get to me when it originally said that it would be there the day after I ordered it.

I have over 400,000 miles on my gmc ,all non synthetic oil.I switched to this when delo was reformulized and am very happy with it.

I have been using Shell Rotella motor oil in my diesel tractor for years. It is 40 years old and still runs like new.

Quite the find! Just the package size I was searching for & what a price! I saved $30 for the same quantity in different packaging! Thanks!

Oil had leaked out all over box will not order any more. They were laid on their side need to be setting up and labeled this side up.

I use this twice a year changing out all my motorcycles oil. Never had a problem, last as long if not longer then the more expensive motorcycle oils for tappets. I can tell I need a change when the gear dogs click louder than normal. I get about 2500 miles out of a change in my old air cooled shared sump bikes. I'm sure I could go longer, oil still looks nice when I drain it. I just prefer to change it at manufacturer intervals. I then use the used oil in my mowers for a half season of more. Have one mower that's been going strong for 11 years, still doesn't smoke and starts every time. Wouldn't trust anything else in my old fleet of tappet head bikes.

We have exclusively used Rotella Oil in our heavy duty commercial trucks for over 35 years and been very happy with the quality of the oil. It has served our vehicles well. Here is our gripe.... SHELL OIL COMPANY HAS STOPPED FILLING UP THE GALLON CONTAINERS WITH OIL AND SHORTING US AT LEAST A QUART OR MORE OUT OF EVERY GALLON WE PURCHASE SO WE ARE NOT GETTING A FULL GALLON AS CLEARLY STATED ON THE OUTSIDE OF THE CONTAINER. THIS PRACTICE IS DISHONEST SHELL!!! Go ahead and open the top and look down into the container and you will see the oil is barely over the halfway mark of the gallon container.

My 1979 Volvo 244 DL with 231000 km has been treated to Shell Rotella T4 10W30 since Sept. 7, 2019, odometer at 215477. The overhead cam/valve sound is quieter at 3000 R.P.M. on the 400 series highways at 100 km/h. The rear crankshaft oil seal has stopped seeping oil this year. I used to use synthetic oil. I can experience that Shell Rotella T4 10W30 oil really agrees with the 2.1 L, B21 A naturally aspirated gasoline engine. These are long-lived engines, and anything I can do to prolong its life is appreciated. Thanks, Shell engineers, for the extra protection of Z.D.D.P. for the camshaft lobes!

I have been running Rotella 15W-40 in my Mercedes 300 Turbodiesel for years. Unlike what the instructions say about a 5,000mi oil change, I change my oil every 3,000mi. The car now has 528,000mi on it without overhaul yet! I also use Rotella 15W-40 in a pickup with a 454 engine pulling a 11,000lb chorus trailer.