amsoilman
Staff Alumni
Sure your not! LOOK at your "web Page"!Texas Diesel said:Disclaimer: Not affiliated with any company.

Wayne
amsoilman
Sure your not! LOOK at your "web Page"!Texas Diesel said:Disclaimer: Not affiliated with any company.
I'm sure the same can happen with any oil. Maybe sometimes there's a batch that doesn't turn out as designed?Texas Diesel said:My experience with Amsoil products have been less than satisfactory.
Vaughn MacKenzie said:I'm sure the same can happen with any oil. Maybe sometimes there's a batch that doesn't turn out as designed?
Do any of you guys running RP in their transmission haul heavy? LivinEZ on NW Bombers tried it and 'bout fried the lube: http://www.nwbombers.com/forum/index.php?showtopic=15057
Vaughn MacKenzie said:I'm sure the same can happen with any oil. Maybe sometimes there's a batch that doesn't turn out as designed?
Do any of you guys running RP in their transmission haul heavy? LivinEZ on NW Bombers tried it and 'bout fried the lube: http://www.nwbombers.com/forum/index.php?showtopic=15057
amsoilman said:Here is a "SAE TECHNICAL PAPER" dated Oct 1995, you may want to read.
A Synthetic Diesel Engine Oil with Extended
Laboratory Test and Field Service Performance
ABSTRACT
This paper describes the engine test and extended oil drain field performance of new synthetic engine oil technology developed for use in North American low-emission heavy-duty Diesel engines. The resulting formulation utilizes an advanced additive system specifically tailored for synthetic base stocks which exceeds current industry and engine builder targets in critical performance tests. Use of synthetic base stocks allows the formulation of engine oils with a unique combination of performance characteristics, which include meeting SAE 5W-40 viscosity requirements for cold starting benefits while maintaining low volatility loss at high temperature for oil consumption control. In addition to meeting API CG-4, CF-4F, CF-2, CF, SH and EC requirements, this technology has also demonstrated exceptional performance in extended-length Diesel and gasoline engine tests. Furthermore, it has also performed very well in extended service interval field tests.
At drain intervals up to four times those normally recommended, excellent engine wear, deposit protection, and oil consumption control have been consistently demonstrated. Additionally, fuel economy benefits in excess of 4% relative to SAE 15W-40 conventional mineral oils have been documented.
The desire to reduce costs associated with the operation of heavy-duty diesel engines has prompted considerable interest in extending the mileage and/or time between engine and vehicle service intervals. Extended service intervals for engine and other vehicle lubricants offer the potential) for multiple cost benefits. Lower cost for consumable materials (lubricants and filters), reduced labor costs for scheduled maintenance, less out-of service time for engines and/or vehicles, and lower expenses for disposal of used oil and filters are several potential benefits that could be realized by extending service intervals. As operating costs rise, the incentive for fleet operators to extend engine service intervals increases. It is critical, however, that extension of engine service intervals does not negatively impact engine reliability and durability since increased repair costs and engine down-time would rapidly offset cost benefits gained by extending service intervals.
At the same time that engine operators are recognizing the benefits for extending service intervals, diesel engine manufacturers are producing updated emission controlled engines with significantly higher specific power output than the older engines they replace. Therefore, operating conditions for engine oils are likely to be more severe due to potentially increased thermal and load stresses. Engine builders and operators also expect improved durability from modern diesel engines, further increasing the performance demands on engine oil technology. Combining a move to extended oil drain intervals with the introduction of engines with higher power densities and longer service lifetimes increases the challenges for developing engine oils capable of providing the level of protection needed to prevent lubricant related engine problems.
The objective of the work described in this paper was to develop a high performance diesel engine oil with the capacity to provide the maximum level of engine protection at extended oil drain intervals.
There is much more, but very lengthy.
Wayne
amsoilman
jimnance said:It's a fact, do the research. All lubricant oil sufferers a breakdown of the molecular chain that gives the oil it's lubricating properties. Synthetic or conventional will suffer the break down of the chains. The only question is how quickly. Triple by-pass whammy whoopy bypass filters are fine, but in the end, when the oil breaks down enough it's starts failing to lubricate properly.
I don't know the relative rate of breakdown, though given some time on the net I'm sure I can find it. Does synthetic break down more slowly? Probably. The question is how much more slowly.
Texas Diesel said:The data in interesting but real life can be different.
My 98 5speed and the 97 BMW both had Amsoil in them and shifted poorly. I switched them to another high qualty synthetic, both shift MUCH better now. The 5 speed no longer strains to get into Reverse or 1st. The BMW shifts like hot butter.
The 98 5 speed had Amsoil bumper to bumper (I almost didnt buy it because of the Amsoil stickers, but 12V QC's are hard to find). The diff, at 180k miles needs a new ring and pinion, severe wear is shown. Pretty short life for "THE" superior lube. I know many owner/dealers (who make a profit by promoting it) will swear by the stuff but my experience has shown otherwise.
funkra said:Numbers are listed below, and are based on AMSOIL Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil HDD vs. Shell ROTELLA® T Synthetic 5W-40) . These were all done using the same test standard.
1. Viscosity Index (ASTM D-2270) Lower percentages mean that an oil is more shear stable and will retain its viscosity better during operation: 170 AMSOIL, 176 Rotella.
2. Kinematic Viscosity @ 100°C, cSt (ASTM D-445): 11. 7 AMSOIL, 15. 0 Rotella.
3. Kinematic Viscosity @ 40°C, cSt (ASTM D-445): 67. 6 AMSOIL, 90 Rotella.
4. Pour Point °C (ASTM D 97) -51 AMSOIL, -40 Rotella.
5. Flash Point °C (ASTM D 92) 230 AMSOIL, 222 Rotella.
Every one of these favors AMSOIL. Thanks!
funkra said:The other specs listed by Rotella actually come out in favor of AMSOIL. Numbers are listed below, and are based on AMSOIL Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil HDD vs. Shell ROTELLA® T Synthetic 5W-40) . These were all done using the same test standard.
1. Viscosity Index (ASTM D-2270) Lower percentages mean that an oil is more shear stable and will retain its viscosity better during operation: 170 AMSOIL, 176 Rotella.
2. Kinematic Viscosity @ 100°C, cSt (ASTM D-445): 11. 7 AMSOIL, 15. 0 Rotella.
3. Kinematic Viscosity @ 40°C, cSt (ASTM D-445): 67. 6 AMSOIL, 90 Rotella.
4. Pour Point °C (ASTM D 97) -51 AMSOIL, -40 Rotella.
5. Flash Point °C (ASTM D 92) 230 AMSOIL, 222 Rotella.
Every one of these favors AMSOIL. Do you have something more detailed than this, that compares all the specs (using the same test standard) and includes the Four Ball Wear Test? Something like that would lay all this conjecture to rest. I really don't favor any one at this point... haven't hit the Cummins recommended 20,000 miles before switching to synthetic. I know what AMSOIL puts out... I just can't find full specs listed for some of the other good oils. None of them list Four Ball Wear Test results that I can find, which in itself might tell us something. Has anyone built a spreadsheet showing side by side comparisons based on hard test data? Thanks!
LightmanE300 said:I'm not sure how every one of the above data favors amsoil...It is clearly a LOT thinner at operating temp, which is why I would never run a 30 weight. I'm not sure why you compared a 30 vs 40 weight, but a better comparison would have been between oils of the same viscosity. Amsoil has a 5w40 and a 15w40. .
As for the four ball wear test, to me it's a test that Amsoil has decided to use as a marketing tool... while they provide a seemingly solid reason for its use, realistically if that was a true measure of how an oil holds up, the big companies would all list it as a spec as well.
amsoilman said:TEXAS DIESEL,
Which lube did you have in the BMW transmission?
Wayne
amsoilman
LightmanE300 said:I'm not sure how every one of the above data favors amsoil...It is clearly a LOT thinner at operating temp, which is why I would never run a 30 weight. I'm not sure why you compared a 30 vs 40 weight, but a better comparison would have been between oils of the same viscosity. Amsoil has a 5w40 and a 15w40. .
As for the four ball wear test, to me it's a test that Amsoil has decided to use as a marketing tool... while they provide a seemingly solid reason for its use, realistically if that was a true measure of how an oil holds up, the big companies would all list it as a spec as well.
funkra said:Gents, here's something a rep from Royal Purple just emailed me. I was leaning towards Amsoil until I read this...
++++++++++++++++++++
Rod,
We do not currently market a 5W40 instead choosing to market a full synthetic 15W40 that is actually API Licensed, unlike most of the products sold by
Amsoil (the only company listing any 4 ball wear tests - which is not a recognized engine oil test - it was designed by the ASTM to test performance of batch to batch quality of the exact same formulation of oils. ASTM reports that there is no correlation between 4 Ball wear numbers of oils with differing formulations.
Here is a link to our API Licensed oils http://eolcs.api.org/DisplayLicenseInfo.asp?LicenseNo=0777
Here is a link to search for any API Licensed oil - suggest that you search Amsoil - you'll may be surprised that you do not see the Series 2000 and Series 3000 oils that they promote the hardest for diesel applications.
http://eolcs.api.org/
On our website, we list product value for our 15W40 which has an excellent pour point of -44 F (Mobil Delvac 1 5W40 has a pour point of -45 F) so the difference between RP's 15W40 and 5W40 is negligible.
Sulfated ash content, since it is an API Licensed oil has to fall within the API CI-4+ limits. Sulfated Ash content is not a performance spec - and should not be a determining factor in choosing an oil. (although those not in the industry grasp at things to compare and wrongly interpret this physical parameter).
The RP comes in at 1. 2% - 1. 3% versus 1. 35% for Delvac 1.
I've attached a viscosity comparison of RP 15W40 to Mobil Delvac 1 5W40 and there is not significant departure until -20 F or so - and there are very few places in North America that actually experience significant time where ambient temperatures are below -20 F for any length of time.
For those of you north of the border in Canada and Alaska, we do offer a 10W30 Diesel rated API CI-4 product for low temperature operation.
Thanks for your email. '
Cheers,
PS you can find the product data sheet under industrial products on our website.
http://www.royalpurple.com/prodsi/rpmoi.html
David Canitz
Tech Services Manager
Royal Purple Ltd
1 Royal Purple Lane
Porter, TX 77365
++++++++++++++++++++++++++
I checke the API website, and yes, very few AMSOIL products are API certified. Here's the list:
License No Company Name
0995 AMSOIL INC
Brand Name SAE Viscosity Grade Service Category Current Expiration Date
PCO 15W-40 CI-4/SL** August 8, 2006
XL 10W-30 SM/CF* August 8, 2006
XL 10W-40 SM/CF August 8, 2006
XL 5W-20 SM/CF* August 8, 2006
XL 5W-30 SM/CF* August 8, 2006
* Energy Conserving ** CI-4 PLUS
That's very few from there entire product line. Looks like the only product API certified is XL, and no diesel oils are listed at all. Anyone have an idea why this is?