This weekend I would like to change the fluid in my transfer case and also change out the the gear oil. I did some research but its a bit confusing with all the different brands and what goes where, so I went on http://www.redlineoil.com and found:

1. 80W140 GL-5 Gear Oil <-- for my transmission
2. MT-85 75W85 GL-4 Gear Oil<-- for my transfer case


All I'm wondering if those are OK to buy and if they are compatible with my vehicle.

2008 Evo GSR 5 speed.

 

No, wrong fluids in the wrong places!

transmission: http://www.maperformance.com/redline...l#.UNZUDobedg0
transfer case & rear differential: http://www.maperformance.com/mitsubi...l#.UNS8zIbedDs
rear differential: http://www.maperformance.com/mitsubi...l#.UNS84YbedDs

 

Hey Kracka, the link you posted for "transmission" came up as the ams performance gate selector bushing. Did you mean a fluid? I'm looking to do my 15k maintenance as well so I want to know which fluids I need. I have a GSR.

 

I think I undertand:

Tranny:
Mitsubishi Diamond ATF SP III & AMS Performance 5 Speed Gate Selector Bushing Kit

Transfer Case:
Mitsubishi DiaQueen GL5 LSD Gear Oil

 

Nope, I'll go fix my links when I get a chance.

 

Transmission link fixed.

 

Thanks Kracka! I have my 15k maintenance that I need to do. I'm wondering if I need to replace all my fluids for it, or if I can just get away with cleaning my intake filter and changing my oil. I figured I would just get all of the fluids just in case. I haven't tracked my car or beat on it.

 

All the fluids too.

 

In case you are wondering why Kracka suggested two different fluids for the rear diff, it's because there are two different sections to the rear diff and they require different fluids. The attached picture, hopefully, will make it clear:

 

The other question that comes up is whether you need to change the fluid in the ACD/AYC pumping system. The answer is No. You keep some Mitsubishi Diamond ATF SP III around for topping off the reservoir in the trunk, but you don't need to change it and you really don't want to because the bleeding process for this system is a pain in the tuchus. Wait until your transfer case blows up and change and bleed then.

Referring to the picture attached to the previous post, you swap the yellow and red fluids every, say, 15,000 miles, but you don't touch the orange fluid unless you have to. At most, you siphon some ATF from the reservoir and refill with new, but you don't swap the ATF fluid used by the pump unless you have to.

 

Sweet, I ordered my fluids minus the Mitsubishi Diamond ATF SP III, since I don't need to change it, I'm not to worried about it.

Thanks for the help guys.