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Toyota Tacoma transfer case gear oil #5282159 12/01/19 03:56 PM
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jeepthing07 Offline OP
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I have a 2002 Toyota Tacoma i need to change the transfer case fluid on. I bought a gallon of Lucas Heavy Duty 80W-90 Gear Oil to do front and rear diffs and the transfer case. But then i started wondering if the Lucas gear oil was compatible with the brass syncros in the transfer case. I know GL-5 fluid eats syncros and you need to run GL-4 in a syncronised transmission. The Lucas ear oil says "Exceeds Service Level API GL-4, API GL-5, API MT-1" So does this mean i can run this fluid in the Toyota transfer case without harming the syncros?


Last edited by MolaKule; 12/03/19 06:02 PM.
Re: Toyota Tacoma transfer case gear oil [Re: jeepthing07] #5282240 12/01/19 05:35 PM
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69Torino Offline
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That gear Lube is fine, but a gallon isn’t going to do both differentials and the transfer case. You’re likely going to need a couple more quarts.


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Re: Toyota Tacoma transfer case gear oil [Re: jeepthing07] #5282246 12/01/19 05:42 PM
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zeng Offline
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This is not pre-2000 GL5.
Besides the claimed MT1 ,J2360 MIL2105E is speced for synchros protection .
Hence this modern day GL5 is safe for your synchros .

Re: Toyota Tacoma transfer case gear oil [Re: jeepthing07] #5282254 12/01/19 05:56 PM
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jeepthing07 Offline OP
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OK, i can buy a few more quarts i just want to be sure it's safe to use in the transfer case.

Re: Toyota Tacoma transfer case gear oil [Re: jeepthing07] #5284273 12/03/19 06:11 PM
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MolaKule Offline
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Originally Posted by jeepthing07
OK, i can buy a few more quarts i just want to be sure it's safe to use in the transfer case.


A 75W90 GL-4 was originally specified so I would select from one of these fluids:

MTLs in the 14-15 cSt (SAE 75W90) range would be:

Amsoil MTG
Redline MT-90
Castrol Syntrans Multivehicle 75W-90
Castrol Syntrans Transaxle 75w-90
Ford XT-75W90-QGT
Ford MOTORCRAFT® Full Synthetic Manual Transmission Fluid XT-M5-QS
ACDelco 10-4059 GL-4 75W-90 Manual Transmission Fluid
RAVENOL TSG SAE 75W-90
LiquiMoly 75W-90 GL4
Pennzoil 75W90 GL-4


Last edited by MolaKule; 12/03/19 06:11 PM.

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Re: Toyota Tacoma transfer case gear oil [Re: jeepthing07] #5284616 12/04/19 05:33 AM
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MetalSlug Offline
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Mobil 1 is fine choice and cheap easy to find local , this is my Togo gear oil

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