I don't know how this myth got started that Rotella didn't have anti-foaming additives in it. Rotella is one of the most popular diesel oils so of course they will meet the specs of current and past diesel engines.

 

That is the mystery of myths…..tuff to say that three times real fast!

 

With all the reasearch I did on oil this year my choice came down to Shell Rotella T 5W40 and Mobil Delvac 1 5W40. In my opinion there is no difference between the two oils. I chose Mobil 1 because I ran it for years in cars and never had a bearing failure.

 

I agree. You can't go wrong with either one.

 

John your statements is one of the most rational written
phrases in oil history.......in the halls of FTE.
Now all we need to do is………..make sure folks know it is about their choice.

 

I still havent recieved my email back from Shell. But, I promise you that I will have a talk with my Shell representative. Because, he was the one that told me that it didn't have Anti-foaming agents but that there was a additive you can put in it. However, my PSD did not like the Rotella T. Maybe it was just a bad batch of oil. who knows..............

 

Please post it. I'm sure it will match my response from Shell. Any oil that has the CH-4 or CI-4 rating will have antiforming additives. Is your Shell representative an engineer or a salesman?

Be sure to tell Mr. Van Benthuysen I said hello!

If Rotella didn't have antifoaming agents, their stance on oil additives would be different than this:

What's the story on supplemental oil treatments?


We don't recommend them. By the time an engine oil like Shell ROTELLA® T reaches the marketplace, it has satisfied a lot of performance requirements. Everything the oil needs in order to perform is already there, carefully balanced. Using supplemental additives can destroy this balance and hurt the oil's performance.
Developing engine oils is time-consuming and costly. First comes the setting of performance targets, which include the American Petroleum Institute (API) performance category and engine manufactures' specifications (Mack and Cummins have separate specs). Then base oils must be selected for each viscosity grade. With more than a dozen additive components necessary to achieve the required performance, it's a science to assemble the ones that are soluble in the chosen base oils and that work the best without "interfering" with each other and causing performance problems.

Next come screening tests to prove that the oil formulation has a chance of passing strict engine and bench tests. The API's CH-4 performance category requires passing twelve tests! This testing process can take months and cost millions of dollars.

The oil supplier must then make sure that its plants blend the formulation correctly, batch after batch. Then there's the quality assurance program to see that every batch performs. And if the oil is Shell ROTELLA® T, it still has to pass muster in tough field tests that put the oil through harsh conditions.

When you buy equipment, you can add all kinds of options to improve performance. With a premium oil, no optional supplemental additives are necessary.

 

he is a salesman.............

 

Sounds like he might be trying to sell you an additive you don't need.

 

Just wanted to add that there is a difference between the two. Shell Rotella T 5W40 is a conventional oil that is CI-4 rated, whereas the Moblil Delvac 1 5W40 is a synthetic which is also CI-4 rated. There is a Shell Rotella T Synthetic 5W40, but it is only CH-4 rated not CI-4 rated. The CI-4 rating was introduced with the EGR systems in mind. I believe the CH-4 rated oil may not have the additives to handle the addition soot and acids re-introduced into the engine from the EGR system.

 

You are correct about the purpose of the CI-4 rating, but you are incorrect about Shell. The Rotella T 5W40 synthetic is also CI-4 rated. Here's the info:

Product Description
Shell Rotella® T Synthetic SAE 5W-40 is a fully synthetic heavy-duty diesel and gasoline engine oil developed especially to meet the requirements of North American driving. The exclusive Shell formulation offers users exceptional performance and protection in combination with enhanced fuel economy potential over conventional 15W-40 motor oils. This synthetic multigrade engine oil meets the service requirements of virtually all four-stroke cycle diesel and gasoline engine manufacturers.
Applications
• Recommended for new and older diesel- and gasoline-powered vehicles, including personal vehicles and commercial vehicles such as on-road, off-the-road, truck rental, pickups, delivery, utility, and school bus fleets.
• Meets or exceeds the diesel engine requirements of API CI-4, , Cummins CES 20078, Detroit Diesel, John Deere, Dodge, Ford, GM, International, Mack EO-N Premium Plus 03, Volvo and others. For gasoline engines, it exceeds API SL.
Features/Benefits
• Formulated for multipurpose use, simplifying inventory needs
• Outstanding wear protection and bearing corrosion control helps maximize engine life
• Helps speed cold starts, even with low winter temperatures
• Enhanced oxidation stability and soot control, especially at higher temperatures, aids service life
• Improved fuel economy – when compared to conventional SAE 15W-40 oils
• Product is warranted against defect and has performance which meets or exceeds virtually all equipment manufacturer’s engine oil warranty requirements
Approvals and Recommendations
• API CI-4, CH-4, CG-4, CF-4, CF
• API SL, SJ, SH
• Cummins CES 20078,20076; 20071
• Detroit Diesel 7SE 270
•
• Mack EO-N Premium Plus ’03, EO-N, EO-M Plus

http://www.shell-lubricants.com/prod...TSynthetic.pdf

 

I guess I made the right choice for me. I'm sure that I saw somwhere that they carried identical ratings.

 

After reading through want seems to be ten thousands words one could being to feel much like an oil engineer or the very least a gibbering idiot.

 

and we KNOW which one YOU are ...........

J/k Tim !!!!

(you've GOT to stop leaving the door open like that !)
I learned after Bob got me about the 10th time - yes slow learner _ short bus - go ahead Bob !!!!)

 

Sorry about the incorrect data, but the info I found on their website about a month or so ago did not show the CI-4 rating. I was also just at Walmart this morning and the Rotella T Synthetic 5W-40 only had a CH-4 rating. This Walmart store only opened last week, so it should have brand new stock. Is this a brand new approval? If so, is the old formula essentially the same formula as the new CI-4 oil, but just not have the new label?