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kausinarukus
08-03-2009, 04:20 AM
So was gonna get 3 quarts Redline MT-90 for my transmission, i get on website to buy it and redline says get 1 quart MTL and 2 quarts MT-90 to meet specs of evos 75w85 oil spec. Has anyone tried this or should I just stick with the 3 quarts MT-90 ?

EVO9er
08-03-2009, 08:43 AM
I've was always told to just put MT-90 in.
No mixture of anything else... you should find out though and let us know.

;)

3diamondxpress
08-03-2009, 09:11 AM
i just use 3 quarts of mt-90 for the tranny.no mixing

Mike W
08-03-2009, 09:40 AM
Straight MT-90 gives the best protection. But some people get a little notchiness when the transmission is cold. The fix for that is to mix in some MTL.

We go with straight MT-90 as a general rule and if someone has a problem with cold shifting we drain out a quart and put in a quart of MTL.


Mike W

EVO9er
08-03-2009, 09:52 AM
Well said Mike ;)

kausinarukus
08-03-2009, 10:13 AM
thx with quick replys, 3 quarts mt-90 it is.

D4o
08-03-2009, 05:29 PM
I just had 3 quarts of fresh MT-90 put in, no problems at all.. Real smooth

Vietdragontekx
10-04-2009, 02:36 AM
is it fine to put redline mtf in 6 speed tranny?

HMatt
10-04-2009, 03:27 PM
Well, I put it in... seems fine to me... lol

riceball777
11-15-2009, 08:44 PM
i have always used 1 quart of MTL and the rest is filled with mt90

Wasabi
11-16-2009, 12:54 AM
I use the MT-90 and MTL cocktail. It's smooth during cold and buttery when its fully warmed up.

HMatt
11-16-2009, 03:50 PM
^yeah.... I think i'm going to go with that for the next one. It's a little notchy in 1st and 2nd until it warms up, but I really don't notice it unless I'm thinking about it. It's not bad enough to warrant draing out 1 quart and putting the MTL in.

spdracerut
11-16-2009, 11:59 PM
I use to fill the T-case with Heavyduty Shockproof, put the rest in the tranny (~1/3 quart). Then fill the tranny with MT-90. Doing a track day in warm weather, I'd put in the ~1/3 quart heavy in the tranny, another full quart of heavy, and the rest MT-90. From anothers experience on Evom, straight MT-90 can get a bit thin during heavy track useage.

HMatt
11-17-2009, 09:13 AM
^yeah well... since I don't track my car except for the occasional 1/8th or 1/4 mile run, I really don't have to worry about that...

But didn't mike say something about NOT putting the shockproof in the tranny?

Mike W
11-17-2009, 12:02 PM
From TRE' website:

http://teamrip.com/manual_transmission_gear_oil_recommendation_info.h tml




We only recommend using a GL-4 spec transmission oil in the Mitsubishi manual transmissions. There are several GL-4 gear oils on the market for you to choose from. I highly recommend REDLINE MT-90 gear oil as it has proven itself a worthy oil for those who are making lots of torque and who want to shift fast, yet are also looking for long service life from their transmission. There are concerns about using REDLINE SHOCKPROOF type gear oils inside manual transmissions. While this is truly an excellent product, it has been found that the heavy paraffin-like particles are quickly centrifuged out of the oil and build up inside the center diff housing and around the synchronizers and inside of the gearshafts. After several oil changes this build up may block oiling passages inside the gearshafts that lubricate the needle bearings and can reduce the overall effectiveness of the synchronizers, leading to poor shift quality. Also this oil is has too high of a viscosity for winter use. Therefore we do not suggest using SHOCKPROOF in the transmission unless the transmission is to be serviced often or a dog box.



There is so much more great information on that page. Please read through it.

Mike W

HMatt
11-17-2009, 05:18 PM
^nice!

spdracerut
11-18-2009, 12:22 AM
Per the quote in Mike's post, I'm one of those guys that falls under transmission 'serviced often'. Fluids are cheap and easy to change. Trannies and T-cases, not so much.

Mike W
11-18-2009, 01:01 AM
He means "serviced" as in taken apart and physically cleaned out.


it has been found that the heavy paraffin-like particles are quickly centrifuged out of the oil and build up inside the center diff housing and around the synchronizers and inside of the gearshafts. After several oil changes this build up may block oiling passages inside the gearshafts that lubricate the needle bearings and can reduce the overall effectiveness of the synchronizers, leading to poor shift quality.

Are you meaning you change your fluids a lot? Or you take it all apart and rebuild it and clean it out by hand a lot?

Mike W

gsrIXevo
11-18-2009, 02:02 AM
its funny how we kind moved away from diaqueen because it was thought.. that was the issue with notchy shifting. but may mistu got something right. i guess i will be stopping by sometime soon to try and get back on the 5k tranny oil swap band wagon. i have noticed that 15k for all fluids was starting to feel real sluggish by the time i got to 10k. we shall see... but that write up connected a lot of questions that i had in the past.

thanks mike...

HMatt
11-18-2009, 09:41 AM
Well.... This is some nasty goop build-up from shockproof in a "not regularly serviced" tranny

D4o
11-19-2009, 01:39 PM
Diaqueen FTW in the t-case and rear diff.. I use MT-90 for the tranny, gunna mix it with 1 quart on MTL next change.