can someone help me with this?? atf info

[mikeg5]

hey guys i pulled both Synthetic DEX3 and Syn BLEND DEX6 off the Mobil website will you guys please read and tell me which one is better.. i dont know all the fancy terms like you guys do!

Mobil DEXRON-VI ATF (BLEND)

Viscosity
cSt @ 40ºC 29.5
cSt @ 100ºC 5.83
cP @ -40ºC 11,500
Viscosity Index 145
Flash Point, ºC (ºF) 220 (428)
Gravity, API 35.76
Color Red



Mobil 1 Synthetic ATF dexIII\Merc

Viscosity, ASTM D 445
cSt @ 40º C 34
cSt @ 100º C 7.6
Brookfield Viscosity, ASTM D 5293
-cP @ -40º C 5190
Viscosity Index, ASTM D 2270 199
Pour Point, ºC, ASTM D 97 -54
Flash Point, ºC, ASTM D 92 236
Density @15º C kg/l, ASTM D 4052 0.86
Color Red

 

[mikeg5]

here is one for Valvoline DEX\MERC in the red bottle (supposedly full syn)

Test Typical Property
Viscosity @ 100°C, cSt 7.31
Viscosity @ 40°C, cSt 36.73
Viscosity Index 169
Specific Gravity @ 60°F 0.8518
API Gravity @ 60°F 34.77
Pour Point, °C, -51
Brookfield Viscosity @ -40°C, cP 16,500
Flash Point, COC, °C 202
ASTM Color 5
Appearance Red

 

[Pablo]

They are both red. OK OK sorry.....

This is for 2002 Tacoma? Don't use Dex VI.

I'm not even much of an M1 fan for Toyotas.

 

[mikeg5]

why is that pablo? compare the maxlife too its in my second post

 

[Pablo]

You can tell by the M1 numbers that at least it's made with real synthetic oil....or....well it flows pretty good cold.

I've heard not a ton of negative with Valvoline.

BUT if you want a real synthetic with good properties and a good history, choose between these two:

Amsoil ATD ATF

Amsoil ATF

Personally I'd use the ATD.

 

[mikeg5]

Originally Posted By: Pablo
You can tell by the M1 numbers that at least it's made with real synthetic oil....or....well it flows pretty good cold.

I've heard not a ton of negative with Valvoline.

BUT if you want a real synthetic with good properties and a good history, choose between these two:

Amsoil ATD ATF

Amsoil ATF

Personally I'd use the ATD.


no amsoil for me brotha. sorry.. too expensive and i have to pay shipping on top of that.. ill stick with what i can find at china mart or local auto parts stores.. if i could get amsoil at the store i would get it but not till then.. sorry pablo

 

[mikeg5]

btw you heard bad things about valvoline maxlife atf?? i havent

 

[Pablo]

Originally Posted By: mikeg5
btw you heard bad things about valvoline maxlife atf?? i havent


Quote:
I've heard not a ton of negative with Valvoline.

 

[mikeg5]

sorry pablo your phrasing sucks haha

 

[Pablo]

Originally Posted By: mikeg5
sorry pablo your phrasing sucks haha


haha

What can I say? ATF buttfeel is not worth all that much. Some people are OK with Valvoline in Toyotas, others don't like it. Will I endorse Valvoline? Of course not. Is it better that M1? Much better value IMHO.

 

[Whitewolf]

I woudn't advise putting a DEXRON-VI in the Toyota either.

 

[mikeg5]

yeah i think ill either stick with my current Maxlife atf dex\merc (dex3) or i may switch to Mobil atf (dex3) my only issue with maxlife is that i still have that hard shift from 1-2 and 2-3rd gear when its cold ( 45 degrees outside or colder) until the transmission warms up and then its smooth sailin' afterwards

 

[PT1]

Doesn't Toyota spec the famous T-IV for that application?

 

[Pablo]

Originally Posted By: PT1
Doesn't Toyota spec the famous T-IV for that application?


2002 Tacoma = Dexron III

 

[benjamming]

Originally Posted By: Whitewolf
I woudn't advise putting a DEXRON-VI in the Toyota either.


I was hoping that you would say that so that I could ask you why! What would be the failure mechanism?

 

[Whitewolf]

Toyota use different materials to GM, friction material for instance being the most obvious. The DEXRON fluids, DEXRON-VI now and DEXRON-III before, are designed to work with GM designs, materials and calibrations. Whilst other OEMs have used GM spec fluids for many years that has been their decision.
If you take a look at Toyota WS performance tou will observe that it is in some respects quite different enough from DEXRON-VI to cause a concern if someone were to use it in a Powertrain transmission. That being the case and since as far as I am aware no one has tested, I have to conclude for the moment that It also might be a concern if DEXRON-VI was used in a Toyota transmission.
Actually the GM people presented a paper at the recent Chicago SAE meeting pointing out differences between OEM fluids and the reason why only the recommended fluids should be used.
Sorry, that is a bit of a rambly reply. If I have not answered to your satisfaction let me know and I'll try again.

 

[benjamming]

I can see the WS to Dexron VI maybe. But in DexIII or T-IV to Dexron VI so the friction coefficient won't be the same so the shifts won't be the same but would it expedite the transmission in puking its guts all over the highway? If so, what would cause the failure? I'm not concerned about whether Toyota or GM has tested DexVI in a Toyota application but more conjecture at this point I guess.

 

[Whitewolf]

The biggest issue the friction. The friction characteristic is always a function of friction material, reaction surface, control system, and fluid. Change any one of these and the friction characteristic can change, sometimes dramaticall. That could mean a very harsh shift that may affect component durability or it could be a very soft shift that may give rise to excessive slippage, extended shift times and clutch failure.
The same applies to the TCC, it might shudder or it might slip too much and damage the material.
Any better?

 

[mikeg5]

yeah i wont be using DEX6 for sure.. ill stick with my maxlife or M1 syn dex3

btw, from looking at the info i posted in my first post (M1) and my second post (maxlife) can someone point out the big difference in both? supposedly maxlife is a syn (asuming grp3) thanks fellas

 

[benjamming]

Thank you Whitewolf.