Toyota T-IV - Safe with half & half Amsoil ATF?

[Tones]

Originally Posted By: The Critic
There's really no advantage to using these multi-vehicle fluids...They are not in the best interest of the consumer.

Wow, this post is off topic, but I have to disagree. The advantages include the fact that these are high-quality synthetic fluids with better high and low temperature properties than OEM that meets the requirements of the vehicle. Besides which, having more choices is always in the best interest of the consumer and is the reason we are not paying far more for the fluids than we are.

 

[The Critic]

Originally Posted By: Tones
Originally Posted By: The Critic
There's really no advantage to using these multi-vehicle fluids...They are not in the best interest of the consumer.

Wow, this post is off topic, but I have to disagree. The advantages include the fact that these are high-quality synthetic fluids with better high and low temperature properties than OEM that meets the requirements of the vehicle. Besides which, choice is always in the best interest of the consumer and is the reason we are not paying far more for the fluids than we are.

Again, while you may satisfy the low and high temperature properties with higher quality base oils, you still do not have the optimal frictional properties for each individual application with a multi-vehicle product.

 

[Tones]

I would be interested in seeing proof of this, since these manufacturer's have stated the opposite and are willing to back their products with warranties.

 

[The Critic]

Originally Posted By: Tones
I would be interested in seeing proof of this, since these manufacturer's have stated the opposite and are willing to back their products with warranties.

The info is in the SAE paper. The paper tested the frictional properties of various approved service fills from different vehicle manufacturers. The results are plotted in a graph, and you can see that the fluids behave very differently in a single test.

http://www.sae.org/technical/papers/2007-01-3987

 

[artificialist]

I had half factory T-IV and half Amsoil in my mom's Solara, and it worked well. Too bad some drunk crashed into and totaled that car.

 

[Gary Allan]

Originally Posted By: The Critic

The info is in the SAE paper.

http://www.sae.org/technical/papers/2007-01-3987


Errr ...LEARN.

Author(s):
Angela P. Willis - General Motors Corp.
Roy Fewkes - General Motors Corp.

Just what do you expect from these authors? Maybe they should apply at XOM/Valvoline/SOPUS for jobs and tell them they're FOS in producing the multivehicle formulas.

 

[The Critic]

Originally Posted By: Gary Allan
Originally Posted By: The Critic

The info is in the SAE paper.

http://www.sae.org/technical/papers/2007-01-3987


Errr ...LEARN.

Author(s):
Angela P. Willis - General Motors Corp.
Roy Fewkes - General Motors Corp.

Just what do you expect from these authors? Maybe they should apply at XOM/Valvoline/SOPUS for jobs and tell them they're FOS in producing the multivehicle formulas.

XOM doesn't do the multi-vehicle fluid stuff.

Have you see this thread?

https://bobistheoilguy.com/forums/threads/atf-vs-gear-oil.85164/

 

[Gary Allan]

Quote:
XOM doesn't do the multi-vehicle fluid stuff.


I beg your pardon?

Mobil 1 Synthetic ATF is a multi-vehicle, fully synthetic fluid designed to meet the demanding requirements of modern passenger vehicles.

 

[The Critic]

Originally Posted By: Gary Allan
Quote:
XOM doesn't do the multi-vehicle fluid stuff.


I beg your pardon?

Mobil 1 Synthetic ATF is a multi-vehicle, fully synthetic fluid designed to meet the demanding requirements of modern passenger vehicles.

It used to carry Dexron-III(H) and Mercon-V approvals. It was actually approved for certain specifications.

In addition, it isn't a multi-vehicle/universal product in the same way that Amsoil is.

 

[Gary Allan]

So? I'm still waiting for you to figure out that two GM authors, when writing a SAE paper for publication ..are going to have an agenda that serves GM included in their works

 

[Tones]

Originally Posted By: The Critic
The info is in the SAE paper. The paper tested the frictional properties of various approved service fills from different vehicle manufacturers. The results are plotted in a graph, and you can see that the fluids behave very differently in a single test.
http://www.sae.org/technical/papers/2007-01-3987

Well, I'm not gonna buy the paper just to read what you summarized here. I still don't see where that proves anything. You act as though there is one particular point that the fluid has to be at. In truth, there is a range of acceptable values for frictional characteristics and viscocities. Even a given fluid fill will exhibit a range of these over the course of its life. If you were to formulate just the right fluid, it would no longer be just right 5k miles later than when you put it in. Does the fluid still do the job? Of course. It is no different than oil in that respect. Different formulators are targeting different aspects of the fluid's performance for a given price point.