transfer case had gear oil in it and calls for dextron

[montero91]

what might this harm? anything wrong with draining and refilling with dextron. this is a'91 mitsubishi montero 4x4.

 

[unDummy]

Don't worry. Better protection.
IMO, mechanical xcases aren't too picky.
I'd skip the ATF and stick with gear oil or a manual tranny fluid.

 

[Pablo]

I would drain and go with the manual tranny fluid recommendation.

 

[MolaKule]

Our MTFGlide works well in TC's that are speced for ATF fluids.

 

[Mike_dup1]

Someone might have put gear lube in there to mask a problem.

 

[tdi-rick]

the local lube guides call for a 75W-85 or 75W-90 GL4 oil

 

[MolaKule]

The TC is actually speced (according to my ref. charts) for a 75W85 which would be equivalent to our MTL-P.

 

[montero91]

whoops! you are right i meant to say my '90 v-6 toyota sorry to mislead, thanks for your response. you a right the montero calls for a gl-4 gear lube.

 

[99]

If the transfer case calls for ATF, use it. If the transfer case calls for gear lube, use it. Don't use what it doesn't call for.

Some full time/AWD-type/4WD on demand transfer cases are very sophisticated with differentials, clutch packs and solenoids and using the wrong lube is a easy way to destroy your transfer case.