This is a knock on Walmart not Shell. The oil is great and it's all I use in my diesel engines. HOWEVER, Walmart sent me three (yes three) OPENED/USED gallons of oil. They all three were tied in trash bags and weighed 6.75,7%267.5 lbs respectively. What are you trying to pull Walmart???? RIDICULOUS!!!!

I use this oil in the last 3 Goldwing motorcycles I have owned. I change oil every 5,000 miles. The oil has at least 5,000 miles remaining on it when drained. I am sure I could go another 5,000, but it has become a habit to change at those intervals.

I own a 2018 Ford 150 Diesel 3.0. Meets all the requirements (CK-4, and more) by the manufacturer to keep it under warranty. I use the 5w-40 because it is recommended in the owners manual if using bio-diesel or under harsh conditions. Use the ford filter from ROCKAUTO, Good price if you buy 6 . Shipping adds $1 to each. Well worth it. Walmart does not carry the filter for this engine. Always great results with Shell Rotella. Chevron DELO did not have the correct amount of additives needed based on my research from the ford spec sheet when I started to change the oil myself. Maybe it does now... I never looked back at it. Staying with the same thing going forward.

This is the best oil on the market to use on old, worn gas engines. Yes gas engines. Diesel oil has far more detergent in it than other high shelf gas oils and cleans engine internals and piston rings very well. By using this alone without doing anything else, it literally cut the oil consumption on my old audi 1.8t by more than half. The engine has over 250K miles on it and was consuming about 1 qt every 750 miles. Now it only uses about 1.5 gts every 2000 miles and I change it at 3000. For the last half qt top off I use marvel mystery oil for about the last 1000 miles of an OCI. My car no longer smokes and no longer has a burning oil smell. I am extremely pleased with this product.

Did some research and found out that this oil contains the additives of older style oils of the 60 and 70's! So it protects the older engines with the type of parts that the newer oils don't necessarily cover. Put it in my old Jeep Cherokee and notice a much quieter running machine with a more consistent oil pressure. We will see how things work out after another 1000 miles or so on this batch. And I'm changing over all the oils in my 4 other vehicle to this also!

I had previously done an oil change with an ACDelco filter and Mobil-1 5W-30 and noticed my oil pressure slowly getting lower and lower over a period of a few weeks. Oil pressure went from around 28psi at idle to less than 19psi and wouldn’t go over 35psi when driving, I diagnosed it as a defective or collapsed filter and switched to a Wix XP filter and this Shell Rotella T6 5W-40 for some extra viscosity and protection at operating temp, since then my oil pressure has been great, 33psi at idle and oil pressure goes well over 45psi when accelerating. So if you’ve got a gen 3 or 4 Vortec with low oil pressure consider making the switch to Shell Rotella and either a Napa gold or Wix XP filter.

A very good motor oil for my motorcycles. Inexpensive compared to other top end brands. Whenever I change my oil (about 3k to 5k miles), the old oil is very clean and I have never seen any metal particulates. Im sure other oils do the same job but the price sets Rotella apart.

Shell Rotella T6 Synthetic Diesel Oil is the Absolute Best available for your Diesel Vehicle in my humble opinion. It’s 100% Synthetic (Not a Synthetic Blend) with an Additive Package to help extend the life of your engine. I’ve been using Shell Rotella now for over twenty years.

I use this product for over three years… and it didn’t disappoint me…

The 3 one gallon package is a very good value.