Redline MT90 with TWM shift base bushings in a Speed3!!

[sixerjdm]

Wow, what a difference.

Those little bushings really do add a degree of feel to the stock shift linkage assembly and the redline gear oil swap is worth the price but beware. In order to swap the oil you need a 23mm socket and a 24mm wrench to get the damn plugs off!!!! You will never miss a shift again and in the cold it is like the tranny is already hot. This is a must for any track time junkie.

[meha11]

Redline is some good stuff, i did put RP in mine at first but i thought it was worse than stock, then changed to RL and its been smooth as silk since.

[SharkDiver]

I was thinking about changing to Mobil1 M90..Bad idea?

[Rotus8]

I was thinking about changing to Mobil1 M90..Bad idea?
In my opinion, Redline is far superior to M1. If it's cost you are thinking about, you need only 3 quarts and will probably never change it again.

[sixerjdm]

I would easily recommend redline, talk to anyone that has swapped for another synthetic and then changed to redline. Also if you are going racing or driving hard, it is recommended that you change this fluid every 30k miles. MT-90 was specially designed for Mazda to make the synchros bond with the oil at the molecular level and you WILL be able to feel this difference when after swapping from the stock oil.

[jflash]

what weight did you use?

[Rotus8]

MT-90 is rated 75W90.

[CaSHMeRe]

MT-90 is rated 75W90.

+1 ... that is what i used !!!

i did it at about 1000 miles and even noticed some small metal shavings in the old tranny oil !!!

[hashboogie]

I'm going to have to do the tranny oil swap soon. I'm still waiting for the TWM SS before going ahead w/ the shifter bushings.

[controlo]

i think i'll do it when i get my shifter bushings. i can't wait for em.

[Speedy3]

Does anyone know who else (brick and mortar) besides the Mazda dealer sells the Redline MT-90?

[Rotus8]

Does anyone know who else (brick and mortar) besides the Mazda dealer sells the Redline MT-90?
I got mine from Summit Racing. I know it's not brick&mortar, but it is well established. Around here, there a few smaller places that stock it, but not the chains.

[CaSHMeRe]

PAW here in souther cali. other then that, only online retailers. sorry bud

[Haltech]

24mm wrench and 23mm socket? Geesh, something else to by! Im assuming it has a drain port below the fill port? I gotta get a pump to unless you were able to fill it without one?

[CaSHMeRe]

able to fill without one.

there is a drain port

[Haltech]

Thanks Cas

[laloosh]

23 and 24? I only used a 23. drain plug is towards the firewall, fill plug is toards the front of the car a little higher up. I dont know why u needed a 23 and a 24, its the same size plug. Heres a little tip if u want all the old fluid out. Blow hard into the fill plug while the drain plug is out, youll be surprised how much more oil comes out. Also make sure the car is level when u are filling it, aka jack up both front and rear, otherwise you will over fill the tranny.

[Speedy3]

Thx Rotus and Cash. In case anyone else lives in Washington State, I found two places in the Puget Sound area for MT-90. Carquest Auto Parts (253) 848-1591 in Puyallup, WA and Pinnacle Mazda (425) 271-2700 in Renton, WA.

[CaSHMeRe]

23 and 24? I only used a 23. drain plug is towards the firewall, fill plug is toards the front of the car a little higher up. I dont know why u needed a 23 and a 24, its the same size plug. Heres a little tip if u want all the old fluid out. Blow hard into the fill plug while the drain plug is out, youll be surprised how much more oil comes out. Also make sure the car is level when u are filling it, aka jack up both front and rear, otherwise you will over fill the tranny.

excellent advice. i didn't do it this way, i actually did it differenty, but this method is great.

also, for those wondering, i believe i paid $13 per quart and 2.6 quarts are needed !

[Alejo_NIN]

mt tranny is full of lucas oil stabilizer :)

it runs nice and i only miss gears when my left foot falls asleep and i don't press the clutch completely

[CaSHMeRe]

mt tranny is full of lucas oil stabilizer :)

it runs nice and i only miss gears when my left foot falls asleep and i don't press the clutch completely

lol....

Off-Topic: Actually went to a party for Lucas Oil here in So Cal about a year ago. It was hella fun. Had all the dragsters and monster trucks there !!!!

[Haltech]

Bought my MT-90 from Summit Racing for $8.73 a qt. Got some Watter Wetter as well.. thanks for the tips in the thread.

[khoney]

MT-90 is rated 75W90.

So what's the difference between Redline MT-90 and Redline 75W90? I just bought MT-90 for the tranny and 75W90 for the differential.

[builthatch]

So what's the difference between Redline MT-90 and Redline 75W90? I just bought MT-90 for the tranny and 75W90 for the differential.

omgz this thread is from july lol

you bought 75w90 for the diff in your rx7 or rx8? because on the ms3 the diff is in the trans, lol

[fostersafb]

23 and 24? I only used a 23. drain plug is towards the firewall, fill plug is toards the front of the car a little higher up. I dont know why u needed a 23 and a 24, its the same size plug. Heres a little tip if u want all the old fluid out. Blow hard into the fill plug while the drain plug is out, youll be surprised how much more oil comes out. Also make sure the car is level when u are filling it, aka jack up both front and rear, otherwise you will over fill the tranny.

Any harm in over filling transmission?