My local supplier carrys the following three types of Oil

1. Shell Rotella T

2. Chevron Delo 400LE

3. Mobil Delvac 1300 Super

Which if any would be best in my 7.3 IDI Non Turbo, I know all of the major brands must meet pretty much the same industry standards. These are all 15 W 40 of course. Thanks!

 

I run Rotella, no issues.
Rob

 

I run what ever is on sale no issues

 

I run Chevron Delo 400 no issues. I've HEARD of Rotella causing consumption issues, but no direct experience.

Mike

 

I run Rotella in all my equipment and trucks. No issues

 

Find somewhere that sells Valvoline premium blue. There was a thread on this a while back. You dont want to run the newer formulated oil for use in trucks with DPFs. Which includes rotella. Good ole delo 400 is good, but i dont think they even make it anymore, all i could find is 400 LE (low emission) I switched to Valvoline premium and there was a noticable impovement in consumption and the engine just sounds better. Oil pressure doesnt drop as much as bad either as compared to delo LE Valvoline is alos recommended by Cummins.

but like i said, it boils down to not using the newer low emissions formulations, one is CJ4 the other is something else CI4? Drawing a blank.. well anyway a quick net search should point you in the right direction. FWIW walmart brand oil beat alot of respectable oil brands in a breakdown comparison, including delo and john deere

 

Where do you find the premium blue and whats it cost? i was going to look into that but had never heard anyone running it. i have been running rotella, and on cold start up i see 55psi or so, and after warm i see like 20ish psi.
Rob

 

Not this again

 

Yah really...

I run the walmart (Supertech) brand 15-40, its cheap and works fine.

The extra money for any other "name brand" generally pays for the advertising to sell that brand.

Last I checked, advertising doesn't make my truck run any better, it just makes my wallet lighter

 

Ask 5 different people, you'll get 10 different answers on this one.
I've been using motorcraft 15w40 from walmart for a while. It leaks out at the same rate as the others and the truck didn't blow up yet, so it must be good.
Seriously though, Rotella has been known to evaporate more than others.

 

My truck disappeared Delo at an alarming rate. I'm currently running Delvac. Meh.

 

valvoline premium blue 15/40 non synthetic. endorsed and recommended by Cat, Cummins, and Detroit Diesel. i figure it should be good for my truck. don't have any consumption issues.