@MolaKule, first and foremost, please accept my apologies, as my remarks were not meant to portray any single product in a negative light. Your comments are reasonable and well-founded. However, please understand that there is a difference in perspective between how you see lubrication products as an experienced formulator and the information that I have access to as a hobbyist, consumer, and commercial consumer. My access to information is limited, and at times marketing makes drawing sound conclusions an even more convoluted process. Therefore, I tend to err on the side of caution and take a relatively conservative approach to any advice I give. However, time, and the willingness of others to read everything I post, don't allow me to detail my thought process. However, you absolutely deserve an explanation for the statements that I made.
I am also open-minded and welcome all the information that I can get from someone as experienced and well-versed in lubrication science as yourself. Conclusively, I welcome all corrections to the previously made statements and the ones I am making here.
How did you determine that it is blended to a price point and that Valvoline cut some corners?
I made an assumption based on the fact that this transmission fluid is sold in a price-sensitive market. Valvoline MaxLife used to cost $17.99 a gallon for a very long time, and currently, Walmart sells it for $22.98. Given current economic conditions and the fact that it's sold out everywhere around here where I live, it is clear that this product enjoys a high degree of popularity. Does it make it the best? No, it does not. However, people are happy with it as long as they can get from A to B while using it.
Based on anecdotal evidence gathered from multiple forums over the years, I concluded that DYI-ers such as myself had experienced problems with just about any brand of Multi-Vehicle ATF. Their problems were caused mainly by inexperience or insufficient knowledge about changing transmission fluid or other already present defects.
I have also read your comments about people mistakenly thinking that formulators blend oils to a price point. And I agree with your statements. However, I am also a realist and know that every company has cost accountants whose responsibility is to keep the company they work for profitable. Therefore it is reasonable to assume that material choices that go into products are made based on price points. If you consider transportation, packaging, distribution, marketing, profitability, and the retail price of Valvoline Maxlife, then it is not hard to see how every penny has been accounted for. I seriously doubt that Valvoline is selling Maxlife as a loss leader.
Even additive manufacturers such as Afton Chemicals advertise profitability and price points in their ATF marketing literature:
Full PDF document here:
https://www.aftonchemical.com/Afton.../PDS/HiTEC-2414B/HiTEC-2414B_PDS.pdf?ext=.pdf
In the case of Valvoline Maxlife, I have no way of knowing what materials Valvoline chose to use for their ATF blend. However, based on this information that I have access to, what conclusion could I draw? Other than they blended it to meet certain performance criteria at a certain price point. Also, as I consumer I do not have any access to test data showing that shows performance data of Maxlife.
Do you have a comprehensive or "forensics" analyses of the chemistry you would like to share?
As a consumer, how could I possibly have access to that kind of information?
The viscosity differential between the two is about 1.5 cSt
Yes, and yet companies such as Red Line Oil, AMSOIL, HPL, Castrol, and others who blend Multi-Vehicle ATFs offer two products to account for each viscosity, even if the additive packages are similar or identical. To me, that signals that this small viscosity differential is not insignificant.
but what is the frictional Mu(v) stability or viscosity of LifeGuard 5 after 40,000 miles?
I would like to learn more about Mu(v) and how friction modifiers work for Multi-Vehicle ATFs, and I am kindly asking for your guidance on the subject matter.
Now, as a consumer, how could I possibly know the condition of LifeGuard 5 after 40K miles? Or that of any other fluid for that matter. It's also influenced by driving style (highway vs. grueling city driving), vehicle load, towing, etc. Take that vehicle consistently to the track or drag race it and we'll see how long the fluid and transmission last.
The DI ATF package (as are most DI packages) is formulated with appropriate base oils and tested in actual hardware for compatibility.
This is Valvoline's own statement made in this PDS document:
https://sharena21.springcm.com/Publ...2d889bd3/5ca3517a-e29c-e711-9c10-ac162d889bd3
And that's perfectly fine when it comes to personal vehicles and applications because OEMs treat them differently. If, for example, you look at the ZF TE-ML documentation, you will notice that for personal vehicles the term "lifetime fill" comes up quite often when talking about differentials and transmission fluids. However, when it comes to commercial applications, ZF provides fluid change intervals.
The commercial vs. personal application criticism extends to other brands as well. I have yet to see someone driving a truck with an Allison transmission that uses MaxLife, Red Line D4, or AMSOIL MV ATF. They all use Delvac 1 ATF, Castril Transynd, or Shell Spirax S6 A295.
And while a vehicle manufacturer might not void a warranty if the customer used an aftermarket ATF that was listed by the ATF manufacturer as compatible with his transmission, when it comes to the commercial world, things are different. Yes, some fleet operators will maximize cost savings and buy the cheapest fluids they can get and deal with the consequences. I have seen firsthand the damage that inappropriate (as in cheap) gear oil or transmission fluid does in a truck. As such, most fleets will use appropriately rated fluids that carry OEM approvals. For those people "meets and exceeds" doesn't mean anything.
Back to personal vehicles, when it comes to Multi-Vehicle ATFs, recommendations can be made only on reputation. I am a hobbyist and an enthusiast, so it comes naturally to me to recommend the products that I use. I have never used Valvoline MaxLife ATF in a vehicle, and probably never will. I have used AMSOIL ATF, ATL, Red Line D4, and recently D6, and I know HPL by reputation and I recently purchased their motor oil, transmission fluid, and gear oil. I use and recommend products that are marketed for personal-performance applications. Valvoline MaxLife is not marketed as such. Does that make it a bad product? Absolutely not. However, I don't think that Valvoline tested it in all of those applications that they recommend it for. Maybe they didn't test it in any and are just going by the specifications provided by their additive supplier. And this could be very well the case for other blenders. However, with blenders such as AMSOIL, Red Line, and HPL, at the very least I have the confidence that they used high-quality materials because for them it is not paramount to meet a price point.