Differential and Tcase oil

Hello. Is it ok to use

$39 75w-90 GL-5 Limited Slip, Ultra Long Drain 500k Miles, Manual Transmission, Gear/Differential Lubricant (1 Gallon)

75w-90 for differential and transfer case on a 2017 tundra? I am looking at Mobil 1, but there’s also a Mobil Delvac 1. Does anyone know what’s the difference is? Or what brand do you recommend? Thank you so much in advance for your help.

 

For front and rear diff most gear oils are fine. I like Valvoline in the Flex fill bags. Makes adding the gear oil super easy.

I would do some research on the T-Case. I know that 4runners and Tacomas after a certain year require a different fluid than your normal GL5 diff fluid found these days.

 

Thank you. I’ve been reading and see that many people mentioned Lucas 85w-140 to better protection. Should I go that route or stick with

$39 75w-90 GL-5 Limited Slip, Ultra Long Drain 500k Miles, Manual Transmission, Gear/Differential Lubricant (1 Gallon)

75w-90? The truck is at 160k miles.

 

I personally went with Amsoil Severe Gear 75-140w oil in the diffs (the collapsable bags), and Ravenol 75W in the T-case. Jury is still out on the Ravenol, but I've seen mostly positive things posted. I can always change it out, but the factory stuff is like $75-85 a quart (if you can find it) and requires 2 quarts. If the Ravenol doesn't work out so well, I'll go OEM on that one. Will check in a few more months to see fluid condition. The fluid that came out looked super clean (did all of this at 45K miles) but I'd also read many others when draining and refilling it was clean coming out if changed at a decent interval. I tend to spend more on maintenance, and shorter intervals for the longevity of the truck.

 

Ravenol 75w is what I am going to use in Tcase if I ever get to it. I changed it at 50k in Tacoma and could not tell used oil from new. Tcase oil is last thing on my list. After what I have read on this forum I would not use anything in tcase other then 75w with proper specs.

 

+1 for Ravenol 75w. The bottle with the long straw makes the fill up extremely easy as well.

Edit: in the T-Case that is, not the differentials.

 

OCI thread related.

F/R Differential: 30k (OE or aftermarket). --

$39 75w-90 GL-5 Limited Slip, Ultra Long Drain 500k Miles, Manual Transmission, Gear/Differential Lubricant (1 Gallon)

75w-90 Amsoil Severe Gear
Transfer Case: 30k (OE or aftermarket) -- 75w Ravenoil

OCI non-thread related.

Oil & Filter: 5k miles or 6mo. -- Pennzoil Ultra Platinum 5w-30
Transmission Fluid (drain/fill): 30k or 6yrs. -- OE Toyota Brand.
Coolant: 50k miles or 5yrs. -- OE Toyota Brand.
Power Steering Fluid (OE or aftermarket Fluid) -- OE Toyota Brand.
Brake Fluid DOT 3, inspect at 3 years (aftermarket)
Sparks Plugs: 120k (OE)

 

Amsoil

 

Liquimoly 5100 75w Or Ravenol 75w or Redline 75w for the transfer case.

For the differentials, any 75w-85 or

$39 75w-90 GL-5 Limited Slip, Ultra Long Drain 500k Miles, Manual Transmission, Gear/Differential Lubricant (1 Gallon)

75w-90 will do.

You'll have a bunch of weird fanboys on this forum for ravenol. As long as it meets spec, you're good to go.

 

I checked with my dealer and they use 75-90 in differentials and transfer case. They said they only use 75 when warranty is involved. I used 75-90 synthetic in all and no problems goin and out of 4 wheel drive.

 

Yeah and they use it out of a huge drum, which is assumed to be lower quality. Most shops use the same oil for all 3. Doesn't mean it's correct. The T case takes a different fluid per Toyota. And Toyota sells a specific T case fluid that is super expensive.

 

https://youtu.be/3le9ZT5HUlk

 

from Toyota to one of the members,

 

The big distinction here is GL4 oil for the T-case and GL5 for the differentials.

GL5 (hypoid gear oil) has higher levels of sulfur that can damage/corrode T-case synchronizers.

Different oils for different applications.

 

⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆⬆

 

Kind of like saying “I do the right thing when someone is holding me accountable.”

 

I switched to

$39 75W-90 GL-5 Limited Slip, Ultra Long Drain 500k Miles, Manual Transmission, Gear/Differential Lubricant (1 Gallon)

75W-90, for the differentials, but only because I couldn't find 75W-85 at the time. Used the easy Valvoline bags. Gas mileage has dropped a bit. I think I'll switch to Redline or Amsoil Severe Duty 75W-85 next go around.

 

Both differentials in my 14 (if I can get the fill plug out of the front) will be getting Amsoil 75 w-140 severe gear.

Seems to work in all my other rides, no problem

 

Ravenol MTF-3 for transfer case: https://www.ravenolamerica.com/passenger-car-products/75w-gear-oil-ravenol-mtf-3/ It says GL-4 and recommended for "TOYOTA 08885-81001, TOYOTA 08885-81081, (Equivalent to the 08885-81080 U.S. part number);"

 

Thank you. I was wondering where I was gonna get that T Case stuff.