Ok, I have an 03 MCS, 6 speed, what type of fluid would I need. I know Royal Purple Majestic (think thats right) has tranny fluid, but was also looking at Amsoil. What type do I need, and what are your experiences with various brands? Thank you all.

 

MTF-94, 75W80 is the stock stuff. I went with stock, as no other brand makes 75W80 specifically. Considering it flows within the range 10W-30 motor oil flows, any transmission fluid in the same range should be appropriate.

http://bobistheoilguy.com/visc.html

Most of the aftermarket brands will get you close, but like I said, MINI is 75W80. Also if you have an LSD and are going aftermarket, make sure you're using the correct fluid.

Again, the stock stuff is great and has everything you need. Changed mine around a month ago (@ 45k miles), smoother shifting since.

- Matt

 

REDLINE MTL.

This 70W80 GL-4 Gear Oil (SAE 5W30/10W30 engine oil viscosity) is designed for use in manual transmissions and transaxles. Provides excellent protection of gears and synchronizers and its balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting. Popular in many BMW transmissions and in most Honda and Acura transaxle applications.

My personal preference.

Be sure you are using a GL-4 gear oil, and not a GL-5. The additive pack in the GL-5 oil can corrode certain types of Synchro's in GL-4 transmissions.

 

Good morning i've got a 05 S with lsd and i've been using Redline oil for
50k miles and no problems.MTL or MT90 should work just fine.
everybody have a MERRY CHRISTMAS & HAPPY NEW YEAR

 

Thanks all. i am looking at getting Redline. minilites and a few local friends that Drag (on a dragstrip, legally) recommend it and all say great things about it. Thanks all again.

 

I autocross and it gets pretty warm here in Central Florida in the summer - so should I go with Redline MTL or MT-90?

Thanks!

 

In florida I'd go for MT90. I'm in AZ and I run mt90.

 

Redline MTL works very good with my R53.

 

I haven't had any problems with heat and MTL in Florida.

 

We've been running Royal Purple Synchromax...

 

Stupid question - how much will I need to completely drain and refill the tranny? Any specific issues to look out for while doing the job?

Thanks!

 

You'll need 2 quarts, undo the fill plug before the drain plug, use tubing from above to fill.

I bought Redline MTL from a local speed shop and I'm waiting for the 40k mark to change it. I want my intervals to be even.

 

I use RedLine MTL at 20,000 mile intervals with no problems after each full season solo and pdx events.
I presently have 50,500 miles on the clock.

 

Does anyone have experience with both MTL and MT 90? I currently have MTL in and when cold, it seems a little reluctant in the 1-2 shift. I'm not sure if it's the thin viscosity or just the syncros aging a little. It shifts alright when warmed up.

 

MTL is thinner than MT-90 so if you are having problems with MTL MT-90 would make the cold issues worse.
Try putting in new MTL and see if it helps.