Which is the proper part number for trans oil for a GSR, MZ320197 or MZ320195?

And as far as the diff goes... there are two parts of the service, how crucial is the torque transfer part that takes the diamond atf sp III? I was thinking about foregoing that part.

 

Oh! And any tips on which site to get the oils from? I was looking at maperformance.

 

Are you talking about your transmission fluid? Or your rear diff. Both use completely different fluids.
If you're talking transmission fluid, I'd recommend the cocktail blend of Redline MTL. Very reputable and makes shifting a lot less clunky. I used OEM tranny fluid when I swapped out my clutch and I hated it, went to Redline and made a worlds difference.
https://www.maperformance.com/collec...ishi-evo-x-gsr

And if you're talking about the rear diff, refer to this picture. I would just do both while you're down there and have the car lifted up. Kill two birds with one stone. LSD Diaqueen Gear Oil smells real gross too. (: Hope this helps.

 

Thanks Honeymelon! I was considering the Redline for the tranny, but figured I'd stick with oem while under warranty. But the smoother shifting is enticing because right now it is notchy.

I was asking about the rear diff. I didn't know it was a 2 area process and admittedly I am not handy working on my car. My friend is going to take care of it for me. Hes very knowledgeable. At this point I just want to make sure I get the right oil. Which of those two areas for the rear diff is the more commonly done 1? I am confused. The "Differential Mechanism Part" is the more commonly done area? I initially thought the "Torque Transfer" part was the regular... but that takes the weird Diamond oil making me think it isn't the common area.

 

Too long... basically trying to figure out which of the 2 diff areas is more commonly done so I know which oil I need for that. AYC = torque transfer mechanism or differential mechanism??? HELP!

 

Do them both. You only need like half a quart for both. And doesn't the work need to be done at a recognized shop for it to be counted as warranty? And if you're worried about warranty then stick with oem fluids and just suck up the clunky gear box. Service manuals recommend you change them both at the same mileage/kilometres. Idk. Seems self explanatory to me. Ps don't cheap out, change out the washers too. (:

1 quart of Diamond ATF SP3 : MZ320200
1 quart of LSD Gear Oil Diaqueen: MZ320345

 

thank you Honeymelon for website

 

Thanks you too

 

Subbed for future use

 

Thanks for the tips. I am hearing from many reputable places that the part that requires the Diamond fluid isn't necessary. Shoot, even Mitsubishi dealer techs say so! "Doesn't need a chance unless we replace the pump." Even from reputable Evo shops recommended here say the same!

 

 

Hey. Thanks for replying. I am looking at the picture above, and thats what I am talking about. "The differential mechanism part" needs changing, according to everyone. But the other part, the Torque transfer mechanism part" is what I am being told by a bunch of places doesn't need replacing.

 

 

 

Thanks for the help. I know nothing about wrenching and this rear diff stuff has been a real pain. Doesn't help that the dealer/reputable shops are saying not to touch anything involving the SP3. I got confused and legitimately asked "So none of the SP3 fluids need to be changed?" And was given a solid no. Mitsubishi dealership in NJ had their "Evo tech" talk to me as well as Ivey Tune.

Meh don't care about all that. So to clarify, do the SP3 fluid that is pictured above.. and the procedure is simple as what the directions say? Flush and fill, basically? Thanks a ton.