Here I am

CI-4 Oil, Where are you guys buying it...

Attention: TDR Forum Junkies
To the point: Click this link and check out the Front Page News story(ies) where we are tracking the introduction of the 2025 Ram HD trucks.

Thanks, TDR Staff

bio

Californians going to be happy

I use AMS OIL in my 06 and I am getting 18 to 20k on my oil and still has not reached the end of its life but I still change it a 20k anyway. I also drive about the same as you. Hope this helps.
 
I found Delo 400 CI4+ 15w40 for $66. 00 plus tax for a 5 gal pail at Big Bear Petroleum on Edith Blvd in Albuquerque.



I plan on getting two 5 gal pails tomorrow.
That identical oil is $93 otd here in San Diego at a marine distributor. Includes taxes and all the other crap Ca forces on us. :{ Delo CJ 15-40 is on sale now @ $7. 50 off at Costco. I've been getting stellar results from Blackstone on it 5K intervals. I'll probably go to 7. 5K next time.
 
Here is the part # for the Classic if they still make it 5gallon plastic pail 591839 You might give Valvoline a call.
 
I've been through this whole CI4 and CJ4 thing on my trucks and trucks at work. It's not worth the effort to find this stuff and pay a premium. I've read the TDR articles from a few years ago... and the one that just came out updating CJ4 oils (PS: The TDR article didn't shop around much... I can get Rotella T6 and Mobil TDT 5W-40 cheaper and conventionals cheaper than whats shown).



I've also read articles from other sources such as Fleet Owner regarding CI4 versus CJ4. It seems like the general concensus is CJ4's are different, true... but are very robust oils and do a good job of keeping engines clean and protection. And while articles like the TDR states that oils like T6 Rotella 5W-40 isn't worth the cost... some owners of certain trucks... like HUEI engines (Powerstroke, CAT) will tell a different story. Depends on what you have.



The bottom line for me was that it would be very hard to prove, over many hundreds of thousands of miles, that CJ4 oils did any kind of harm to older engines like my 6BT. In fact it could perhaps be proven that it was a benefit in some ways. Its a toss up that wasn't worth splitting hairs over because of the cost and availability of CI4's.



The only place left I can find it without special ordering is my local CAT dealer. But I can buy Rotella T6 synthetic in CJ4 spec for what they want for their CI4 15W-40 (Mobil rebadged).



I don't think any body here has the time, money, nor equipment to really prove how CJ4 oil might harm their engine over the long haul. Simply doing oil samples on new oil to compare what oil has what amount of this or that in them doesnt do a good job of proving the oil is any better or worse, than any other... on a typical user level.



TBN for example used to be a number everyone wanted to be high... and for good reason. But with todays ULSD fuel... that number doesn't need to be as high anymore because there is less acidity to combat. And what really is the difference in a TBN of say 8. 9 versus an oil that has 9. 3. Does anybody really know if that makes the a real world difference? Does a typical owner, who takes decent care of his/her truck, pay all that money to analyze their oil at specific intervals to check such a thing and change based on that? Sampling costs almost as much as a change.



To me... . its just buy CJ4 and rack up the miles. Change at 5000 or 7500 or 10000 or whatever you feel comfortable with based on what you do. And the engine will go a long long time. Just my opinion on searching the world over for an obsolete oil. I went through all this.
 
Last edited:
Any Chevron distributor should sell Delo Multigrade 15w-40 which is CI-4+. I can get it locally for just under $13/gal (5 gallon bucket). My local farm/ranch stores also carry it. I also have a CAT dealership locally if I ever want to try their oil.

I disagree with Ncostello in the sense that it isn't worth the effort or cost. It may be because it is so easy for me to still acquire CI-4+ oils, but I prefer to run oils that have higher levels of zddp, calcium, phosphorus, magnesium, etc. CI-4+ oils have those ingredients in higher quantities vs. CJ-4 oils.
 
Ive always used Valvoline Premium Blue - still cl4+ certified, reasonably priced, easy to get ahold of, ranked as one of the highest oils in the TDR oil analysis tests, and best of all, its TESTED, APPROVED BY AND RECOMENDED BY CUMMINS!

What more could you ask for?? ;)



Valvoline Premium Blue Part Numbers

55 Gallon Drums VV70505

5 Gallon Jugs VV70506

1 Gallon Jugs 773780
 
Ive always used Valvoline Premium Blue - still cl4+ certified, reasonably priced, easy to get ahold of, ranked as one of the highest oils in the TDR oil analysis tests, and best of all, its TESTED, APPROVED BY AND RECOMENDED BY CUMMINS!
What more could you ask for?? ;)

Valvoline Premium Blue Part Numbers
55 Gallon Drums VV70505
5 Gallon Jugs VV70506
1 Gallon Jugs 773780

That is CJ-4 oil, not the old Valvoline Premium Classic Blue oil that was CI-4+. I don't want anything to do with CJ-4 oil.
 
That is CJ-4 oil, not the old Valvoline Premium Classic Blue oil that was CI-4+. I don't want anything to do with CJ-4 oil.

it is compatible to cl+4 requirements and as mentioned in LOTS of literature put out by Cummins they endorse it in all of their engines do you think they would approve it if it was harmful to any of their engines?
 
My current CJ Blackstone analysis is nearly identical to the former ones w/CI oil. I went an extra 2K as a matter of fact this last time.

One observation is the sky high Boron readings w/CJ Delo 15-40.
 
it is compatible to cl+4 requirements and as mentioned in LOTS of literature put out by Cummins they endorse it in all of their engines do you think they would approve it if it was harmful to any of their engines?

I realize CJ-4 oils are backwards compatible. I haven't mentioned anything about any oils being harmful. However, I have mentioned that I do feel, as many others do, that the CI-4+ oil is better for those of us that don't have the emissions garbage strangling our engine and exhaust.

If the EPA wasn't involved, do you think we would still have CJ oils today? I'm not going to apologize for being skeptical of a newer oil that requires shorter OCI's than its predecessor.

My current CJ Blackstone analysis is nearly identical to the former ones w/CI oil. I went an extra 2K as a matter of fact this last time.
One observation is the sky high Boron readings w/CJ Delo 15-40.

An extra 2k miles beyond what OCI?
 
I realize CJ-4 oils are backwards compatible. I haven't mentioned anything about any oils being harmful. However, I have mentioned that I do feel, as many others do, that the CI-4+ oil is better for those of us that don't have the emissions garbage strangling our engine and exhaust.

If the EPA wasn't involved, do you think we would still have CJ oils today? I'm not going to apologize for being skeptical of a newer oil that requires shorter OCI's than its predecessor.

Yep I get where your coming from Ive heard of others who get worked up over that as well. All I know is weve used this stuff at work for the last 10 years on all our hpcr cummins powered cranes and track mobiles with zero issues. Some of this equipment (trackmobiles in particular) get run nearly nonstop. Over 10,000 hours on them, one of the cranes has something close to that as well.
Its all a matter of preference I suppose, like synthetic oil Some people believe their stuff wont make it with anything else
 
Back
Top