CJ-4 Basestocks

[salesrep]

While tbn's are lower, their decline towards acidity is a gentler slope than the Ci 4's.

 

[e36'n]

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.....The manufacturers product data sheet states that the Rotella 10w30 CJ-4 has a flash point of 249C or 480F. So is that false than?

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The USA spec sheet says 204C, the Canadian spec sheet says 249C.

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I'm definitely using Rotella 10w30 during my next oil change. I heard the CDN version of Rotella was more robust, guess this is somewhat of a confirmation.

 

[salesrep]

How do the vi indexes compare from ci4's to the cj's?

 

[salesrep]

Very informative link from Detroit diesel.
http://www.detroitdiesel.com/Support/On-...E270_010307.pdf

 

[TimVipond]

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How do the vi indexes compare from ci4's to the cj's?

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The old Rotella 15W40 CI-4 VI was 141. The new Rotella 15W40 CJ-4 is 135. http://www.shellusserver.com/products/pdf/RotellaT(CJ-4).pdf .

 

[salesrep]

What is Amsoils? delo?

 

[TimVipond]

Amsoil 5W40 CJ4 is 176.

 

[TimVipond]

The Delo CI-4 is 125. Can't find it for the CJ-4.

 

[Steve S]

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How do the vi indexes compare from ci4's to the cj's?

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Wouldn't the vi index in this case have more to do with the amount or type of vi improver used because the viscosity of the base oil "in the finished product" Years ago Amsoil made a 10w30 had a 150 ish viscosity index and the new pao only oil was 176ish with viscosity improvers.

 

[Junior]

I'm of the opinion CJ-4 oils are not as good as the previous specifiction and were designed only to meet the emissions requirements of on-road diesel engines with the new exhaust gas treatment systems.

If they are so great then why isn't our engine supplier recommending them for the off-road equipment we produce?

 

[e36'n]

Looks like you disagree with Terry than who said:

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...I can't share too much about why I think Rotella T CJ4 is so good because I worked for Shell last year. It is the sleeper oil for many here at BITOG that want performance at reasonable cost. WILL perform as a near synthetic (I said it Gary). 10w30 CJ4 Rotella is a wonderfully wide use lubricant.

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[JAG]

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If they are so great then why isn't our engine supplier recommending them for the off-road equipment we produce?

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Purely because of high sulfur content used in off-road diesels which demands a high TBN oil to fight the extra acids produced.

 

[Junior]

Fair enough considering off-road just made the switch to 500ppm June 1 and won't go to 15ppm until 2010 with a few exceptions.

 

[Tornado Red]

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If the CJ-4 is that much of an improvement, I wonder why the CI-4+ is still available for large quantity users? It appears, to me, that there must be some advantage to the 'old' CI-4+ if they are still manufacturing it. Maybe the CI-4+ 'is' a more robust oil, for those that don't actually 'need' the new CJ-4.

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Large fleet operators may have hundreds or thousands of engines to maintain. The decision to switch from CI-4 Plus to CJ-4 is a really big decision, and there are many uncertainties about how well the new formulations will work.

So it only makes sense for oil makers to let these fleet operators try the CJ-4 oils in some engines, while they continue to supply CI-4 Plus oil for the rest.

For some, the testing will go on for a couple years, as they monitor the results. It would be foolish NOT to offer choices to these customers. Otherwise the customers might buy somebody else's CI-4 oil during the testing period.