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Feb 3, 2017 | 08:33 AM

#16

timmyboy76

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The T5 oil, at the time, was a synthetic blend 10w-30. I've ran that stuff since day one for 6yrs, minus summertimes, then i switch to 15/40.
Fast forward to the new bottles, I now see that the T5 has 2-grades, both being a synthetic blend, but 2 weights...10/30 and 15/40..
Think, with what's being found/said, I'll continue the 10/30 route, fulltime.
I did had to plug in last weekend up in big bear at 14*-30*..EOT was 25*

Feb 4, 2017 | 09:54 AM

#17

F0rdc0wb0y

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What I've gathered from my reading is that with the new ck4 the levels of zinc and phosphorus are reduced from the previous cj4. Correct me if I'm wrong, but I think with every new API standard the levels of zinc and phosphorus have been reduced from the previous designation. I started looking for 15w40 with high levels of zinc and phosphorus and found that amsoil had high levels of both. But, it's like $40 a gallon. I can't afford that. What are yalls thoughts on running and oil additive that will bring the zinc and phosphorus levels up to snuff? Also, am I just overthinking this lol?

Feb 4, 2017 | 02:36 PM

#18

crop harvester

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There's a lot that goes in to blending oil,so its questionable if there's a gain or loss of quality when adding stuff.

Feb 4, 2017 | 03:32 PM

#19

hydro man 17

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From: Hat Creek Ca

Sorry if I am a bit behind the times, but do the new designations/formula(s) apply to the good old DELO 400 15W-40 as well? This is all my truck has used since day one with a 3K change interval, 178K miles now. Oil is still clean (on the stick) at change time.
Will this "new stuff" be the same?

Feb 4, 2017 | 05:29 PM

#20

IDI-Charlie

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From: Staunton, VA

We had a good thread on this awhile back, and I am pretty much stating a short summary of what I stated in that thread.

The biggest thing to keep in mind here is Ford doesn't recommend CK-4 in Ford diesels. That is the 6.7 and ONLY the 6.7. Our 7.3s are International/Navistar engines, NOT Ford.

The T4 oil is the same stuff as the old Triple T we have been running for years. They rebranded it as they considered the oil their 'Tier-4' oil because it sat between their 'Tier-3' and 'Tier-5' oils (T3 and T5 brands respectively).

If the bottle says CJ-4, it is CJ-4 oil and NOT CK-4 being sold as CJ-4. If it was CK-4, the rating on the inside of the donut would say CK-4 with CJ-4 on the outside of the donut. Also, the CK-4 didn't start getting bottled until Nov/Dec 16.

The engineer I spoke with at Shell stated the CK-4 they manufacture meets the standards in place for the 7.3's, but not the 6.7 (currently) and saw no reason to worry about the oil. I have attempted to get in touch with a Navistar engineer, but never heard back. I plan to attempt to get in contact with one again soon.

The FA-4 rating is for next gen diesels only and is thinner weights, IE 10w-30 and the likes.

Feb 4, 2017 | 07:29 PM

#21

F0rdc0wb0y

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Thanks for the insightful post Charlie. I too would love to hear what navistar has to say.

Feb 5, 2017 | 09:24 AM

#22

bigb56

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From: Arizona

Quote:

Originally Posted by IDI-Charlie

Thanks for your input. I still have questions though that I don't think can be answered just yet. You bring up a good point with the Navistar engine, however I wonder if Ford means to include it as one of "their" engines in the statement because after all, it is in "their" trucks. And if not, if they found excessive wear in the 6.7 with CK-4, what is different about that engine vs. other makers engines? Does CK-4 offer less protection in many engines but Ford is the only one who has come forward?

You said that all the CK-4 sold is labeled CK-4 but I am not so sure about that. The first batches of Rotella T-4 did not have the CK-4 designation printed in the API donut but the Rotella web page indicates that T-4 is a CK-4 oil. So in order for what you said to be true they would have had to bottle the old T-3 in the new T-4 bottles that were labeled as CJ-4 only.

We have all seen the changes in fuels and oils over the years and when another EPA change comes along I am a skeptic before I am a believer. Since there is not really anything made today that I would be comfortable replacing my 7.3 with I am going to be vigilant about making sure it gets what it needs for a long life.

Feb 5, 2017 | 04:54 PM

#23

IDI-Charlie

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From: Staunton, VA

Quote:

Originally Posted by bigb56

You bring up a good point with the Navistar engine, however, I wonder if Ford means to include it as one of "their" engines in the statement because after all, it is in "their" trucks.

While I see your reasoning, I do not believe that they consider an engine that hasn't been used in their trucks for the past 13 years 'theirs.' Ford's bread and butter these days is the 6.7, and I am sure they focus as such.

Quote:

Originally Posted by bigb56

If they found excessive wear in the 6.7 with CK-4, what is different about that engine vs. other makers engines? Does CK-4 offer less protection in many engines but Ford is the only one who has come forward?

Ford is not recommending the use of CK-4 oil in the 6.7 as they experienced sleeve wearing issues during testing, attributed back to lower phosphorous amounts than was standard when the 6.7 was originally designed. I have not heard any reports of wear issues out of other manufacturers, and am not sure what exactly AVL/Ford used for the sleeve material in the 6.7.

Quote:

Originally Posted by bigb56

You said that all the CK-4 sold is labeled CK-4 but I am not so sure about that. The first batches of Rotella T-4 did not have the CK-4 designation printed in the API donut but the Rotella web page indicates that T-4 is a CK-4 oil. So in order for what you said to be true they would have had to bottle the old T-3 in the new T-4 bottles that were labeled as CJ-4 only.

The T4 oil that I bought a couple months ago (around Black Friday) was CJ-4, and the full switch was yet in full affect and T-4 was still being coined as 'Ready For CK-4.' Now, after the switch-over has fully happened, the oil is in fact CK-4.

Quote:

Originally Posted by bigb56

Since there is not really anything made today that I would be comfortable replacing my 7.3 with I am going to be vigilant about making sure it gets what it needs for a long life.

As the Shell engineer stated, the oil meets the specs our 7.3s call for, and in fact I am running T-4 currently (albeit it is still CJ-4) and will use Rotella T-4 with the CK-4 designation for a good while, unless the Navistar engineers tell me otherwise.

If anybody wants to read the thread we had running on this issue, you can find it here:
https://www.ford-trucks.com/forums/1...-ck-4-oil.html