Manual Transmission Fluid?
I just read up a little on it and I do intend on replacing the synchro as well as the select spindle to prevent this issue from happening to the new synchro.
And glad to hear it's doable at home! I am a DIY wrencher coming from the E30 world but I'm just not looking forward to removing the transmission for this job 😔
And glad to hear it's doable at home! I am a DIY wrencher coming from the E30 world but I'm just not looking forward to removing the transmission for this job 😔
Junior Member
Joined: Jun 2018
Posts: 6
Likes: 4
From: San Diego
With a lift it’s < 45 minutes from car to bench..but then I’ve had a little practice over the years. Not sure it was mentioned in what you already read, but don’t forget to order the rear output/tail shaft seal (cheap). Also a great time to change the fuel filter while the trans is down.
https://mazdatrix.com/product/clutch-fork-93-95/
Is there a different part # for the stronger 94+ forks or did the newer version just supersede the weaker 93 version?
Sorry for threadjacking btw!
Racecar - Formula 2000
Joined: Sep 2002
Posts: 4,027
Likes: 366
From: Bath, OH
...Good tip! I checked real quick and found this one but noticed it was listed as 93-95.
https://mazdatrix.com/product/clutch-fork-93-95/
Is there a different part # for the stronger 94+ forks or did the newer version just supersede the weaker 93 version?
Sorry for threadjacking btw!
https://mazdatrix.com/product/clutch-fork-93-95/
Is there a different part # for the stronger 94+ forks or did the newer version just supersede the weaker 93 version?
Sorry for threadjacking btw!
if you want to be particular, the pilot bearing and rear main seal too since they’ll be accessible. Possibly the clutch or disc only, TO bearing, and resurface the flywheel too.
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Last edited by TeamRX8; Jan 29, 2022 at 08:37 PM.
Junior Member
Joined: Jun 2018
Posts: 6
Likes: 4
From: San Diego
Car doesnt leak oil or anything and motor was rebuilt ~1.2k miles before I purchased a month ago but I may replace those things still while I'm in there anyways. I appreciate the recommendations guys!
Obviously the rear main is probably fine with that few miles if it was replaced with the rebuild. Same for the input shaft bearing and seal. But if you happen to pull the FW for, say…resurfacing, you could consider re-torquing the tension bolts. It’s probably just a “feel good” thing but it’s easy and free. The specs and order are in the FSM.
Not aware of any huge recent break-throughs in gear oil. I think synthetic is ALMOST universally used. Amsoil, Redline, NEO, Royal Purple and maybe a couple others consistently come up. Seems to be a lot like favorite pizza or beer….very subjective and everyone has a favorite. It’s pretty easy to change and not a huge expense as things go on the car. So maybe just try different 75w-90 GL-4 or 5 flavors over time and see for yourself. If you haven’t already, a search in Titles only using “Transmission oil” will get you a lot of reading.
Senior Member
Joined: Oct 2006
Posts: 430
Likes: 321
From: SoCal
The more I read about the Ford fluid (the XT-M5-QS), the more it seems like the only thing that should go in these transmissions, at least for cars that aren't going to see extreme heat on track.
It is the only fluid I have seen that is specifically recommended for older transmissions, and it has the lowest 40C viscosity I have seen, and it is an OEM fluid. That plus the plethora of positive testimonials, even some directly mentioning Redline, Neo, etc., it seems like it will be a winner.
I'm going to try it out and will report back with the results. This will be a 14k mile transmission with a fresh fill of Redline MT90, so will be interesting to see the comparison.
It is the only fluid I have seen that is specifically recommended for older transmissions, and it has the lowest 40C viscosity I have seen, and it is an OEM fluid. That plus the plethora of positive testimonials, even some directly mentioning Redline, Neo, etc., it seems like it will be a winner.
I'm going to try it out and will report back with the results. This will be a 14k mile transmission with a fresh fill of Redline MT90, so will be interesting to see the comparison.
Full Member
Joined: Feb 2012
Posts: 67
Likes: 13
From: Charlotte, NC
TopGunM2k
Joined: Sep 2004
Posts: 302
Likes: 27
From: San Jose, CA
I changed from MT90 to MT-LV on my Rx8 and was very happy with the results. I am thinking of possibly running it on my 1st gen Rx7 but wanted to do a bit more research in terms of it being ok with 178k on the clock and it being a more antique-ish transmission -lol.
a couple of people on RX8Club have been swearing by the newer Redline MT-LV trans fluid as being the most notch-shift free, but haven’t tried it yet myself. I was having my best luck with the Ford fluid previously mentioned. I never was a fan for MT90.
https://www.redlineoil.com/mt-lv-70w75w
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https://www.redlineoil.com/mt-lv-70w75w
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Long Time Lurker
Joined: Feb 2005
Posts: 19
Likes: 2
From: Venice, FL
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