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Shell 5W40 Syn Gal Diesel Motor Oil - 1 Gallon - For High Mileage & Diesel Engines

Ratings & Reviews for Rotella Shell 5W40 Syn Gal Diesel Motor Oil - 1 Gallon - For High Mileage & Diesel Engines

4.8
122
Review
 4.8 out of 5
122 Reviews


97% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The product provides excellent engine protection and cleanliness, keeping engines running smoothly even with high mileage. It offers improved cold-weather starting and reduced engine noise, especially on older vehicles. The product is compatible with both diesel and gasoline engines, allowing customers to use a single oil for all their vehicles. While the product is competitively priced, some customers have reported availability issues in certain areas.

Customer review summary generated by AI, including incentivized reviews.
122 Customer Reviews

Much better in cold weatehr

Would Recommend

Anyone with a Ford 6.0 PowerStroke who lives in a climate where it gets below freezing knows the engine makes knocking noises and is loud & unresponsive when the engine is started in cold weather if the block heater has not been plugged in. With synthetic Rotella T6, though, the engine is much quieter, and does not require as much warm-up time as compared to using conventional oil. Even if one uses a block heater at home, most people don't have that luxury to keep their truck plugged in wh...

December 13, 2018

From rotella.shell.com

Versatile

Would Recommend

I use this in my Cummins diesel truck engine and in my 1985 Mercedes diesel. Only gave it a 4 as it may be the best out there but I don't know as I only use Rotella and have no basis of comparison.

December 12, 2018

From rotella.shell.com

Many applications!

Would Recommend

I run rotella T6 in my S250 Bobcat, my 6.7 powerstroke, my diesel Volkswagen jetta and my ATV, we are all happy about it and running strong!

December 5, 2018

From rotella.shell.com

Great performance

Would Recommend

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!

December 5, 2018

From rotella.shell.com

Great for motorcycles!

Would Recommend

Like others who reviewed T6, I have used this in my bikes for years, as do the group of guys I ride with regularly. Never had a problem and performance is excellent. Even at 5,000 mile between oil changes it comes out of the bike looking like fresh new oil. Much more cost effective than motorcycle specific synthetic products too. Try it, you won't be disappointed!

December 2, 2018

From rotella.shell.com

Fabulous winter motorcycle oil

Would Recommend

I've been putting the T-6, 5/40 in my '09 Yamaha 1900cc air cooled Raider for about 6 years now as a winter weight oil. It starts a lot better than with the 20/50 and it's been running great for years with absolutely no oil burning. Bike has 50,000 miles on it now. Great friggin' product. Love it.

November 29, 2018

From rotella.shell.com

Great oil for almost everything!

Would Recommend

Great oil for almost any engine. I run it in my truck, tractor, motorcycle, lawnmower, and generator. One bottle to fill them all, makes my life easier.

November 26, 2018

From rotella.shell.com

Great product

Would Recommend

Great product I would recommend it for your diesel

November 23, 2018

From rotella.shell.com

My little chevy cobalt, GMC sierra

Would Recommend

I been running this in all my cars and trucks, ATV for many years. My 2007 Chevy Cobalt I drive the most and it has 160,000 miles and I been running this oil since 60,000 miles, starts great in Minnesota winters and I never replaced anything except brakes

November 19, 2018

From rotella.shell.com

Lb7 Duramax

Would Recommend

Really easy to find at a great price. Awesome rebate. I can run longer oil change intervals. Flows better in my cold climate. Would not use anything else in my duramax. Very happy!

November 8, 2018

From rotella.shell.com

Great for Turbo SAABs

Would Recommend

I have been using Rotella-T6 in the 5W/40 weight in my turbocharged SAABs equipped with the 2.3 liter engine for over 10 years. Used Oil Analysis performed at up to 300K miles show effectively zero engine wear.

November 3, 2018

From rotella.shell.com

1997 7.3L International

Would Recommend

Best Synthetic Oil for an Older 1997 Ford (International) 7.3L Powerstroke with 211,000 miles. Easy Cold Winter Starts. Great Summer Protection

October 30, 2018

From rotella.shell.com

Motorcycle use in a 2016 BMW R1200GSA

Would Recommend

Have been using this in my R1200 GSA LC engine for 3 years now. Also used it in my Honda VFR800 and 2006 GSXR1000. Always has been a great oil.

October 30, 2018

From rotella.shell.com

more than just a diesel oil!

I've used T6 oil in everything from diesel trucks to my friend's 2007 Mercedes C350! this stuff holds up to anything that gets thrown at it!

October 28, 2018

From rotella.shell.com

Duramax LML

Would Recommend

Using 5-40 T6 in my 2011 Duramax LML. It offers protection with Michigan cold winters and hot summers.

October 27, 2018

From rotella.shell.com

good stuff

Would Recommend

ive been using rotella for years always meets my needs will always use rotella in my diesel trucks

October 26, 2018

From rotella.shell.com

Best there is!

Would Recommend

Been using this in an F250 Diesel pickup which is used mostly for towing heavy loads. Excellent performance and keeps my engine at the top of the game.

October 21, 2018

From rotella.shell.com

great lube and easy starts in cold

Would Recommend

I've been using T6, 5w-40 in my Terex diesel mini-excavator for four years. Cool runner and easy starts in cold weather. No engine problems or abnormal noises. Price is good with the rebate program. As an aside, I'm wondering if the motorcycle guys may have a "wet" clutch which normally requires a NON-synthetic oil.

October 21, 2018

From rotella.shell.com

Works great in pretty much any engine!

Would Recommend

I love Rotella T6 5w40! We put it in all of our cars and since it meets JASO-MA ratings, we put it in all of our ATV's as well!

October 20, 2018

From rotella.shell.com

Works the best

Would Recommend

I've used it in my duromax chev now in my ram Cummins wont use anything else

October 17, 2018

From rotella.shell.com