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<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TiredTrucker</div><div class="ubbcode-body">From everything I have read in the commercial trucking rags regarding the new CK-4, they are going to primarily increase oxidation and shearing resistance while still...

Awesome information in this thread - looks like I will be giving the John Deer Plus 50 10W-30 a run in my "new to me" 6.0L.

Thanks Garack, I've been using Schaeffer's 7000 15W-40 syn blend in the 7.3L's with an occasional oil analysis. Been running it this way for almost 10 years. Now that I gave bought a 6.0L I'm trying to find the happy place between the oil sheering properties and cold start benefits. In the 15...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Garak</div><div class="ubbcode-body">Yes, no such thing as a CJ-4+. There's nothing from the API on it and we don't see Shell, Castrol, Chevron, or Mobil claiming it, and they all have modern HDEOs. </div></div> Thank...

thanks for the link!

I hear ya.....I was hoping to find something about zinc levels, antimony or other wear and antioxidant requirements. So far just the standard - "it's improved" release.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: OVERKILL</div><div class="ubbcode-body">Yes, and they just approved CK-4: <a href="http://www.api.org/Certification-Programs/Engine-Oil-Diesel-Exhaust-Fluid/Whats-New-in-Engine-Oil/api-approves-ck4-fa4"...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 2015_PSD</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: White_Buffalo</div><div class="ubbcode-body">Does anyone know the difference between CJ-4 and CJ-4...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: OVERKILL</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: White_Buffalo</div><div class="ubbcode-body">Does anyone know the difference between CJ-4 and CJ-4...

My diesels are all pre 2007 so I'm curious how these new specifications are going to affect my non EGR Diesels.

Does anyone know the difference between CJ-4 and CJ-4 plus oil?

OK, I am a bit confused. What VOA was this for then?

I had the same thought. I thought CST Viscosity@100C was 12.5-16.29. Looked to me like this sample was just about center of mass.

I think it is the New T-6 5W-40. Thanks for posting the VOA. Interesting to see Rotella adding Moly to there additive package.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: DieselTech</div><div class="ubbcode-body">It's quite normal for 7.3 to do that especially during winter. I don't believe this has anything to do with your issue of high copper readings. If your truck has a block heater...

Nice UOA report.....

DieselTech, I'm not arguing with you and I could be wrong in this situation, but I have not seen many 7.3L UOA reports that have been related to copper core leaching. I have quite a few on the duramax and a cuople of CAT motors - showing copper in the 200-400 ppm range. Couldn't the copper be...

Ernest, keep in mind that the results on a UAO are not to be taken as exact measurements. You can easily see a 3-4 ppm difference in the results of the same oil sample run through the analysis twice. IIRC the test is reading the 4-7 micron range. I do not know why Molybdenum would show up on...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: artificialist</div><div class="ubbcode-body"> Turbochargers use copper in the bearings. Another sign of a failing turbo is oil getting in your intake pipes and intercooler. Pull some boost hoses and see if oil is...

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: sdan27</div><div class="ubbcode-body">Yeah, I think I'm going to stick with the Service Pro product. I really liked the way that the Schaeffer's grease looked so I'm still a little uncertain on that one but I think I'm...