What kind of trans Fuild?

Dropped mx3 · Post by **Dropped mx3** » March 26th, 2007, 10:47 am

i need to change the oil in my trans its a 5 speed , what would be the best oil to put in it? i have heard full synetic, gear oil n a few others, what do you guys think?

tysoe · Post by **tysoe** » March 26th, 2007, 2:13 pm

I like Redline MT90 which worked wonders in my MX5 and MX3. It's a full synthetic designed specialy for manual transitions and is really popular in mazdas

Tunes67 · Post by **Tunes67** » March 26th, 2007, 3:41 pm

Redline or Royal Purple.. Both are synthetic and both work great. Just get whichever one costs less at your particular parts store

Tunes67

Dropped mx3 · Post by **Dropped mx3** » March 26th, 2007, 5:18 pm

Ill probably go with royal purple what kind like 10w30 5w30? how much also would it take anyone know off hand?

mr1in6billion · Post by **mr1in6billion** » March 26th, 2007, 5:26 pm

Dropped mx3 wrote:10w30 5w30?

hahahahahaha... I wish we had a RTFM emoticon.

This is discussed in multiple places in the shop manual and has been discussed hundreds of times, next time search.

lutos · Post by **lutos** » March 27th, 2007, 8:04 pm

I am using 75-90 synetic

Sal · Post by **Sal** » March 28th, 2007, 11:28 pm

why dont you use the lucas tranny fluid stabalizer? i heard it does the job.

Tunes67 · Post by **Tunes67** » March 29th, 2007, 12:32 am

why dont you use the lucas tranny fluid stabalizer? i heard it does the job.

Because Lucas Tranny Fluid stabilizer is a product for Automatic transmissions and not for use in Manual transmissions such as the 5 speed being discussed here.

Tunes67

Post by **Mooneggs** » March 29th, 2007, 11:05 am

I have been using royal purple ever since I put my ze in and I have had no issues for over 3 years. 75w 90

The tranny also used to grind just a little in third so I had heard that lucas was good also (I realize it is for auto trannies) so I mixed in about half a quart and voila! It worked!

smooth as a babies bottom!

Sal · Post by **Sal** » March 29th, 2007, 10:38 pm

i have known people using lucas for manual tranny. i havent used personally, but they told me it works well...

Tunes67 · Post by **Tunes67** » March 30th, 2007, 1:07 am

Use what you guys want.. its your tranny and your car

Heck there are even manual transmissions (made by ford oddly enough) that WANT you to use ATF in them. Thats what the owners manual of the car dictates the transmissions use. What I am saying in this case is that its not a product recommended for MTX usage. If you have a dying tranny.. you have nothing to lose... if there is nothing wrong with your tranny.. why would you want to put something in it that might end up being detrimental to your transmission?

Tunes67

Sal · Post by **Sal** » March 30th, 2007, 1:45 am

tru, u make a good point i can see where you're coming from.

TREVO123 · Post by **TREVO123** » March 30th, 2007, 1:54 am

theres a tranny fluid that GM puts out and is really good, takes away grinds in the tranny.

JWMotorsports · Post by **JWMotorsports** » April 3rd, 2007, 9:44 pm

400+WHP for way over 10,000miles on a open diff 5-spd Pro LX tanny.

I use Lucas 80w-90 Gear Oil with one bottle of Lucas Transfix...thats what has held it together. The trans in the car now has a Mazdaspeed LSD with the same Lucas lubes. And yes I've pounded the CRAP out the gears...current setup it makine 500+HP @ 26psi on pump gas.

I've used Redline MT-90, Redline 75w-90, Redline Shock Proof w/ MT-90, Valvoline Durablend 75w-90, Costal 75w-90, Mobil 1 75w-90, ATF...blahh, blahh, blahh. I've broken trannies on all the above EXCEPT with the Lucas mix.

It's your tanny...use what you want

mx3autozam · Post by **mx3autozam** » April 12th, 2007, 7:51 am

Had Royal Purple in mine last year.ow with the newer ZE I have Generic fluid in it. Soon enough like after all my mounts are done I will switch to Redline this time.