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#3004412 - 05/16/13 08:50 PM Results Are In On the First Batch Of Diesel Engine
2004tdigls Offline


Registered: 10/31/11
Posts: 308
Loc: maple ridge, bc
http://www.pqiamerica.com/May%202013/consolidatedhdeo.html

interesting results, walmart supertech looks ok

just one question, Why the differences in the calcium levels

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#3004420 - 05/16/13 08:53 PM Re: Results Are In On the First Batch Of Diesel Engine [Re: 2004tdigls]
147_Grain Offline


Registered: 03/11/13
Posts: 1940
Loc: USA
Chevron Delo 400 LE surprised me a bit with 679 ppm of boron.

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#3004426 - 05/16/13 08:58 PM Re: Results Are In On the First Batch Of Diesel Engine [Re: 2004tdigls]
cat843 Offline


Registered: 04/09/13
Posts: 581
Loc: East Coast, USA
This was posted a week or two ago.
_________________________
Cat-Man-843

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#3004435 - 05/16/13 09:04 PM Re: Results Are In On the First Batch Of Diesel Engine [Re: cat843]
2004tdigls Offline


Registered: 10/31/11
Posts: 308
Loc: maple ridge, bc
sorry

did not know this

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#3004498 - 05/16/13 09:53 PM Re: Results Are In On the First Batch Of Diesel Engine [Re: 2004tdigls]
motor_oil_madman Offline


Registered: 11/29/09
Posts: 2402
Loc: Houston, Texas
The reason why I use delo. The best additive package of them all.
_________________________
2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.


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#3004569 - 05/16/13 11:46 PM Re: Results Are In On the First Batch Of Diesel Engine [Re: 2004tdigls]
Swissdieselfan Offline


Registered: 05/11/13
Posts: 92
Loc: Romanshorn, Switzerland
I really can't understand what is the difference between an HDEO and a normal diesel oil?? Delo is the only one that looks like my idea of an HDEO, although it's a pity they did not include the Castrol ones, although they only seem to be available in bulk, even in the EU, apart from some truck stops.

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#3004796 - 05/17/13 08:50 AM Re: Results Are In On the First Batch Of Diesel Engine [Re: 2004tdigls]
miniac007 Offline


Registered: 04/01/13
Posts: 216
Loc: Sweden
The difference is less important now with CJ-4 and low ash oils and low sulfur diesel... But if you look at CI-4/CF-4, you will see more difference.

You have the castrol VOA here: http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=903900

It is just a expensive price (in europe, dunno in USA) on a low average pack with no bore, just zinc...


Edited by miniac007 (05/17/13 08:52 AM)

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#3005239 - 05/17/13 05:10 PM Re: Results Are In On the First Batch Of Diesel Engine [Re: Swissdieselfan]
Garak Offline


Registered: 12/05/09
Posts: 18306
Loc: Regina, Saskatchewan, Canada
Technically, a diesel engine oil wouldn't be dual rated. What we call HDEOs tend to be dual rated.
_________________________
Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Wix 51358
1984 F-150 4.9L six - Quaker State GB 10w-30, Wix 51515

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#3005632 - 05/18/13 02:39 AM Re: Results Are In On the First Batch Of Diesel Engine [Re: Garak]
fpracha Offline


Registered: 12/07/10
Posts: 534
Loc: MA
Originally Posted By: Garak
Technically, a diesel engine oil wouldn't be dual rated. What we call HDEOs tend to be dual rated.

so what really makes a diesel engine oil capable of being spec'd as a dual-rated oil ?

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#3005785 - 05/18/13 09:02 AM Re: Results Are In On the First Batch Of Diesel Engine [Re: fpracha]
Garak Offline


Registered: 12/05/09
Posts: 18306
Loc: Regina, Saskatchewan, Canada
Not being a formulator, I'm not sure I can answer that without being terribly circular. wink

I would say that would include being able to meet the SM (or whatever S spec is met). Of course, that doesn't really answer anything. I think the main contrasts you would see would be if you looked at something like a two-stroke diesel lube, whose elemental analyses are very, very different from what you'd see in a normal HDEO or PCMO. The two-stroke diesel oils whose analyses I've read have very low zinc content, if I remember correctly.

Obviously, too, in a dual rated oil, the specifications are shown as CJ-4/SM, and certain limitations (i.e. phosphorous) are handled differently than a normal SM or higher, even in a 30 grade. A 10w-30 CJ-4/SM can have more phosphorous content than, say, even a 10w-30 SM, even if the latter weren't GF-4. How much higher the limits are, I'm not sure, but if you put me on the spot, I'd suggest a couple hundred ppm.
_________________________
Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Wix 51358
1984 F-150 4.9L six - Quaker State GB 10w-30, Wix 51515

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#3007247 - 05/20/13 02:53 AM Re: Results Are In On the First Batch Of Diesel Engine [Re: Garak]
fpracha Offline


Registered: 12/07/10
Posts: 534
Loc: MA
Originally Posted By: Garak
Not being a formulator, I'm not sure I can answer that without being terribly circular. wink

I would say that would include being able to meet the SM (or whatever S spec is met). Of course, that doesn't really answer anything. I think the main contrasts you would see would be if you looked at something like a two-stroke diesel lube, whose elemental analyses are very, very different from what you'd see in a normal HDEO or PCMO. The two-stroke diesel oils whose analyses I've read have very low zinc content, if I remember correctly.

Obviously, too, in a dual rated oil, the specifications are shown as CJ-4/SM, and certain limitations (i.e. phosphorous) are handled differently than a normal SM or higher, even in a 30 grade. A 10w-30 CJ-4/SM can have more phosphorous content than, say, even a 10w-30 SM, even if the latter weren't GF-4. How much higher the limits are, I'm not sure, but if you put me on the spot, I'd suggest a couple hundred ppm.

Ok thanks!
what about CJ-4 only rated diesel oils... would they not contain high zinc content ?
and in this case, even if SM is not mentioned in its specs, would this CJ-4 rated oil not suffice the base oil requirements of almost any gasoline engine (with the exception of, perhaps, only a few most modern hybrid engines) ?

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#3007319 - 05/20/13 06:35 AM Re: Results Are In On the First Batch Of Diesel Engine [Re: fpracha]
Garak Offline


Registered: 12/05/09
Posts: 18306
Loc: Regina, Saskatchewan, Canada
Originally Posted By: fpracha
what about CJ-4 only rated diesel oils... would they not contain high zinc content ?

A CJ-4 oil should be much the same as a CJ-4/SM. I haven't seen many examples that are CJ-4 only. The U.S. Motorcraft 15w-40 and the Mobil Delvac Elite 10w-30 synthetic blend are the only two that come to mind as CJ-4 only. The former used to have the gasoline rating, and the latter is new in North America. The real concerns with respect to gasoline engines would be the phosphorous content and the viscosity. Both numbers are obviously too high to get a GF-5 rating (or the older GF-4 rating), which is usually called for in most manuals.

So, I don't know what I'd do if I were confronted with those two oils. I'm sure they'd be "fine," particularly in an older engine, but I would be curious as to why they didn't have an SM rating as well. I could see Motorcraft's stance as wanting to make extra sure that people don't use their 15w-40 in a gasoline engine under warranty. I'm not sure what XOM's motivation is, since they do make a dual rated 10w-30 already, and both of their 15w-40 products are dual rated (along with many of the others).

I'd worry most about the two-stroke diesel oil. But,
_________________________
Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Wix 51358
1984 F-150 4.9L six - Quaker State GB 10w-30, Wix 51515

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#3016482 - 05/29/13 06:55 AM Re: Results Are In On the First Batch Of Diesel Engine [Re: 2004tdigls]
pbm Offline


Registered: 04/19/04
Posts: 6287
Loc: New York
The Autozone near me has the latest Mobil 1 5w40 (CJ-4/CI-4/SN) on clearance for $3 a quart.
I picked up a couple of quarts but I don't know where I'll use it. Does it have any value as a PCMO?
What would a 50/50 mix of this oil with Mobil 1 0w20 yield?

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#3016858 - 05/29/13 03:11 PM Re: Results Are In On the First Batch Of Diesel Engine [Re: Garak]
bullwinkle Online   confused


Registered: 10/09/04
Posts: 5638
Loc: Cincinnati, OH, USA
Originally Posted By: Garak
Originally Posted By: fpracha
what about CJ-4 only rated diesel oils... would they not contain high zinc content ?

A CJ-4 oil should be much the same as a CJ-4/SM. I haven't seen many examples that are CJ-4 only. The U.S. Motorcraft 15w-40 and the Mobil Delvac Elite 10w-30 synthetic blend are the only two that come to mind as CJ-4 only. The former used to have the gasoline rating, and the latter is new in North America. The real concerns with respect to gasoline engines would be the phosphorous content and the viscosity. Both numbers are obviously too high to get a GF-5 rating (or the older GF-4 rating), which is usually called for in most manuals.

So, I don't know what I'd do if I were confronted with those two oils. I'm sure they'd be "fine," particularly in an older engine, but I would be curious as to why they didn't have an SM rating as well. I could see Motorcraft's stance as wanting to make extra sure that people don't use their 15w-40 in a gasoline engine under warranty. I'm not sure what XOM's motivation is, since they do make a dual rated 10w-30 already, and both of their 15w-40 products are dual rated (along with many of the others).

I'd worry most about the two-stroke diesel oil. But,
...the problem with the 2-stroke diesel/CF-2 spec is that it is now an obsolete spec, which means API doesn't license (or test) those oils anymore (?)
_________________________
06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 15 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(CQ Blue)

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#3017289 - 05/29/13 10:14 PM Re: Results Are In On the First Batch Of Diesel Engine [Re: 2004tdigls]
DB_Cooper Offline


Registered: 10/01/07
Posts: 332
Loc: Ga
The Delo LE 15w40 looks like it has the strongest additive package of all the 15w40 HDEO sampled.

Why is the TBN number the lowest of all the 15w40s?

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