75W transmission oil

[widman]

Originally Posted By: widman
Quote:
And, to be an 80 grade, it must be above 7cst. Toyota's MT fluid is too thin to meet 80 grade.


Interesting point. But it is causing a lot of confusion.


Just dawned on me why this doesn't compute. As I said in the original post, Toyota sites list it as 75W-85
Toyota products

So where does that leave us?

 

[Greasymechtech]

LV 75w is a manual transmission fluid, in the USA PN 08885-81007 for Toyota/Scion that require LV 75w manual transmission fluid. If it doesn't take LV 75w, it gets a GL4 or GL5 75w90.
Toyota also has a GL3 75w90 for that Subaru that Scion sells.

Market specific fluid? or vehicle specific fluid?
What owners manual specifically calls of LV 75w85?

 

[widman]

Corolla is one of them. But that isn't the question.

The manual spells out the need for the Genuine LV 75W fluid, and on various Toyota sites like I posted above, that is defined as 75W-85.

 

[Greasymechtech]

If there is a TSB or choice in the factory service manual, then its OK.

But if it calla for LV 75w, and you use a 75w85 that is almost twice as thick, I too would expect shift quality complaints.

I could care less what the dealer recommends or sells.

It took a few years for Toyota to import the LV 75w for the USA market.

 

[Garak]

Originally Posted By: Greasymechtech
It took a few years for Toyota to import the LV 75w for the USA market.

Then, the interesting question is, was it problematic in the USA, too, at the time?

 

[dlsotoe]

Hello

Sorry for resurrecting this topic.

I live in Nicaragua; and I can not find the "Toyota LV 75W", for my RAV4 2014 FWD 6MT.

The closest I find is FEBI 75W GL-4 (From a German company). Do you know if this lubricant is suitable as a substitute "Toyota LV 75W"? The technical sheet says "Viscosity at 40C is 41 mm2 / s".

Weeks ago the dealer put 80W90 GL-5 and now shifts are hard. The ambient temperature ranges between 19 and 40 C.

75W GL-4 is not available here in any known brand.

Thank you!

 

[zeng]

"Toyota LV 75W" at KV@40*C of 41 cSt appears kind of too low for an ambient of say, 25-40*C ...... unless one drives like a granny and short trips.
Consider an ISO100 75W90 typically of KV@40*C of 90-110 cSt .......
or up to 120-130 cSt KV@40*C for an aggressive teenage driver.
JMHO.

 

[Bobby_x]

Hi

The Febi you have mentioned is a good replacement for Toyota LV 75W
If you can't find 75W API GL-4 try to find 75W80 API GL-4
If you still fail, ship 75W from Europe, US, Asia
The list of oils is mentioned earlier in this thread. Personally I'd add Fuchs Sintofuid 75W to it, this the oil I've recently changed to in my Yaris

Avoid any GL-5 oil as well as too viscious ones 80wXX 85wXX
These trannys are for GL-4 75W or 75w80

 

[dlsotoe]

Thanks for your answers. That is what the manual recommends. I'll try Febi 75W GL-4

 

[btanchors]

Interesting thread.

I am just getting ready to purchase a 2017 Tundra 4WD. This will be my third 4WD Tundra. I just noticed in the manual it wants "75W" in the transfer case. I was planning to use 75W-90 but now I am starting to think that may not be the best choice...

 

[btanchors]

I've done some quick research on this.

To review, the 2017 Tundra specifies 75W-85 in the front and rear differentials, and 75W in the transfer case.

Amsoil simply recommends their 75W-90 Gear oils in the front and rear differentials, but says they currently have no product recommendation for the Transfer Case.

RedLine naturally recommends their 75W-85 for the front and rear differentials, but also has NO product for the Transfer Case.

I called Redline and spoke to Dave. I asked him why I couldn't just use the 75W-85 in the Transfer case. He said that Toyota has not released any information on the 75W gear oil. He also said that transfer cases can have some parts that are highly dependent on very specific frictional characteristics in the lubricant. Since they don't have the information from Toyota, they cannot recommend any RedLine products at this time.

I also emailed Amsoil as well, and will update this thread when I hear something from them.

In the past, I owned a 2011 Tundra, and it recommended 75W-85 in the front and rear differentials, and 75W-90 in the transfer case. I used Amsoil SVG 75W-90 in all three compartments, and did not have a problem. Interesting that Amsoil still recommends their 75W-90 even though a 75W-85 is recommended by the manufacturer. I am willing to bet that their have been no actual design changes in the transfer case since that time, they are simply moving to a lower viscosity oil to meet EPA requirements. I am tempted to continue using Amsoil SVG in all three compartments of the new 2017 Tundra, but would feel more comfortable with approval from the lubricant manufacturer.

 

[btanchors]

I have heard from Amsoil.

Here is what I sent to them:
Quote:
Greetings - I am acquiring a 2017 Toyota Tundra 4-Wheel Drive. The Amsoil applications guide lists SVG 75W-90, even though the vehicle specifies a 75W-85 great oil. Also, there is no recommendation in the Amsoil guide for a transfer case fluid, for which the Toyota manual recommends a "75W" fluid. Will Amsoil be coming out with a lighter-weight Gear lube in the future? Is there an Amsoil product that would work in my transfer case?


And their reply:
Quote:
We recommend the 75W90 as it will provide a little better protection when the truck is used under heavy load, towing or high speed conditions. At this time we do not offer a product for use in the Transfer Case.


So now, BOTH Redline AND Amsoil are saying they have no product for my transfer case.

Looking at the Viscosity chart for 75W, it appears at 75W-90 would be 3-4 times as thick at 212 degrees as a 75W. This is the first issue. The second issue is that Redline specifically stated their reason is they do not know if the required lube for the transfer case requires a fluid with special frictional characteristics. So, if you simply throw a 75W-90 GL-5 Gear Lube in the transfer case, it's possible you might be using the wrong lube - wrong viscosity for sure, and possibly the wrong frictional characteristics.

Add to the fact that the picture on page one of this thread for Toyota part number 08885-81080 is labeled specifically as Transfer Gear Oil makes me wonder if this is a very special type of Gear Lube.

Comments? What are other 3rd Gen Tundra owners using in their transfer cases?

 

[Bobby_x]

Hi

The 75w oil I'm using is 6,7 @100C or 212F while typical 75w90 is 15
My Yaris manual says using thicker oil may harm mpgs but there is no word about more wear etc

 

[btanchors]

In doing some additional research, I just discovered that beginning with the 2014 model year, Toyota changed the supplier of the Tundra's transfer case. Prior to 2014, the supplier was a Japanese manufacturer. Starting in 2014, Borg-Warner supplies the transfer case. So the change in lubricant recommendation coincided with the change in supplier. So - it is NOT a case of Toyota simply moving to a thinner fluid with the same old transfer case design. The transfer case is different.

This does not mean 75W-90 would damage it necessarily, but it tends to suggest there could be a reason the new transfer cases specify a 75W oil.

 

[zeng]

Well ...... all these Fuel Economy (read:low viscosity grade) oils are for CAFE ..... optimising (Read:compromising and reducing ) components protection.
Since say, 1980's in passenger vehicles we had had oil technologies (in terms of grades like SAE90/SAE140) whereby bearings and gears in gear trains proved to last more than 20-30 years without requiring replacements.
But some of today's gear trains are whining at say, 100k miles onwards.

 

[btanchors]

Here is a link to an article describing the change Toyota made to the supplier of the Transfer Case beginning with model year 2014:

Borg-Warner Transfer Case

Note this excerpt from the article:
Quote:
"BorgWarner’s transfer case uses an electromagnetic-based synchronization system to synchronize the front and rear axle speeds before locking them together. Unlike conventional mechanical synchronization systems, BorgWarner’s electromagnetic-based system provides a smooth, quiet and consistent transition from two-wheel to four-wheel drive,” according to a BorgWarner press release."


This implies there could be a clutch of some type that makes the engagement of 4WD smoother than with the original supplier of the transfer case.

I am speculating here, but if a clutch is indeed involved in the new design, then frictional characteristics of the fluid are important for proper clutch operation. I am willing to bet that using a 75W-90 would cause no problems, except during engagement of 4WD. Since 75W-90 is over 3 times thicker than 75W at operating temperature, I could easily see how engagement/disengagement of the clutch could be affected.

So, I think my decision is made - I am only going to use the OEM 75W fluid in this unit.

 

[Whitewolf]

Try taking a look at the 75W/90 fluids approved by GM.

 

[zeng]

Originally Posted By: btanchors
Here is a link to an article describing the change Toyota made to the supplier of the Transfer Case beginning with model year 2014:

Borg-Warner Transfer Case

Note this excerpt from the article:
Quote:
"BorgWarner’s transfer case uses an electromagnetic-based synchronization system to synchronize the front and rear axle speeds before locking them together. Unlike conventional mechanical synchronization systems, BorgWarner’s electromagnetic-based system provides a smooth, quiet and consistent transition from two-wheel to four-wheel drive,” according to a BorgWarner press release."


This implies there could be a clutch of some type that makes the engagement of 4WD smoother than with the original supplier of the transfer case.

I am speculating here, but if a clutch is indeed involved in the new design, then frictional characteristics of the fluid are important for proper clutch operation. I am willing to bet that using a 75W-90 would cause no problems, except during engagement of 4WD. Since 75W-90 is over 3 times thicker than 75W at operating temperature, I could easily see how engagement/disengagement of the clutch could be affected.

So, I think my decision is made - I am only going to use the OEM 75W fluid in this unit.

The speculation that post 2014 Xcase has some type of clutch being 'added' implying it being a new design is ...... NOT true.
Both new and old models Xcase contain similar components in bearings, spur/spline gears,planetary gear sets, shift forks and synchroniser etc.
Only mechanisms to activate shift forks has changed, instead of traditional lever or electric motor activated types.
This shift activation mechanisms (that shift between 2WD and 4WD AND shift between High and Low gear ratios ) are not in contact with Xcase gear oils anyway. Hence this new type of electro-magnetic activation of shift forks ...... has no relationship to gear oils or its viscosity grades.

 

[Fighter13]

Please forgive me for my bad English. I'm from Ukraine, the city of Kiev. As far as I could understand, you could not find the msds for the engine oil LV 75W. If this topic is more relevant to you, then I can help.
I apologize if I write not in the right place, in a wrong topic.

 

[Jetronic]

Originally Posted By: widman
I have recently discovered Toyota manuals recommending "75W" GL-4 transmission oil. To my knowledge, 75W on the SAE J306 chart only shows the bottom end of the range, hitting 150,000 cP by -40ºC and having at least 4.1 cSt viscosity at 100ºC.

Based on that, I'm hearing people say they put 75W-90 or even 75W-140 in their transmissions and complain sharply about hard shifting with either. Some Toyota dealers are even putting in 75W-90 and causing hard shifts.

After a lot of searching, I found somewhere that the "Genuine" Toyota fluid is 75W-85, but at least one dealer insists that it is 75W-80. On line I found one brand who now lists a 75W and says it is their renamed 75W-85.

Nissan is much more specific, requiring 75W-80 in some transmissions and 75W-85 in others.

So two questions:
--Am I right in understanding that the 75W is only half of the spec? and
--Why would Toyota be so vague about the spec? They must know there are people who need to change the fluid where "Genuine" Fluid is not available.

And finally, since the SAJ306 table allows huge differences, has anyone had their genuine fluid analyzed?


this is one of those 75W spec fluids:

https://www.pli-petronas.com/uk/products...utela-gearforce

it has a few viscosities listed at different temperatures. 7.1 cSt at 100°C though, where does that fit in the SAE gear table? yes in the 75W column aswell.

That said, some users of that oil switched to Castrol Syntrans Multivehicle 75w-90 GL4 and experienced better shifting although the hot viscosity is twice as high. I would be inclined to think that the riction properties of the oil are more important than the viscosity.