Hello, i would like to change the fluid in my 92mtx because it seems to be shifting a bit hard, very notchy especially going into first, no grinding though. What is the best method to change the fluid, is it a PITA using just a jack and jack stands? Im not sure where the drain plug is. What fluid would you recommend for smoother shifting? Thanks alot for the help, Chris.
How to change fluid on 92 mtx?
- Thread starter cmwwit
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SinisterSHO
Rust free
The MTX does not have a drainplug stock. There is a write up on www.shotimes.com that will tell you how to add your own. There also used to be a write up on here about making a fluid vacuum.
frosho
WOLFMAN
Here's that write-up - Can't get your MTX fluid out? Here's an easy way with my DIY Fluid Sucker
You can also drain it by removing the shift interlock bolt, but you run the risk of dislodging some trans internals if you go that route. It's generally not recommended.
You can also drain it by removing the shift interlock bolt, but you run the risk of dislodging some trans internals if you go that route. It's generally not recommended.
platoribs
Live to Drive
I've done the drain hole mod to both my 93 and 95 without any adverse results. Very easy!
Fill it back up with a transmission fluid funnel to the fill/overflow stub hole with a 3/8" or 1/2" square drive, can't remember which.
Fill it back up with a transmission fluid funnel to the fill/overflow stub hole with a 3/8" or 1/2" square drive, can't remember which.
JRA2000TL
The Complainer
I used the method in post #3, sort of, on my 90. I had a Tempo Oil Boy oil evacuator pump (I use it to change the oil in my jetski; they cost about 60 bucks). I used that to suck all the fluid out. Then I used a piece of 1/4 or 1/2" (can't remember) heater/radiator hose and it fit perfectly into the fill hole of the tranny. I ran it upward through the engine bay, connected a funnel, which I hung from the top of the hood (like in that post), poured the tranny fluid in, and let gravity do it's thing. It worked pretty well. I used Valvoline MaxLife ATF.
frosho
WOLFMAN
It's 3/8". A short extension on a 3/8" ratchet works well. Just don't strip it!
JRA2000TL
The Complainer
Yeah, it can be on there pretty tight, especially if it's never been out before. It might be a good idea to use something for leverage. I like to take my hydrualic jack handle and slip it over a ratchet to obtain more leverage and slowly tug. You may not have to do this though...just be careful.
The shift interlock bolt works just perfect, unfortunately a lot of folks are paranoid about using it because of the precaution it comes with. All you do is remove it and replace it, while not moving the shifter. Tell me, who is going to remove the bolt to drain the fluid, then go inside their car and start shifting gears for no reason?
The precaution is on the same level as the precaution to not start your engine while the oil pan bolt is removed for an oil change. It's common sense.
The precaution is on the same level as the precaution to not start your engine while the oil pan bolt is removed for an oil change. It's common sense.
frosho
WOLFMAN
Agreed. It's how I drained mine when I did my clutch jobs this past summer. The precaution does need to be mentioned though. It's entirely possible for somebody to use that bolt as a drain without knowing what it really is. It's only common sense if you know why the bolt is there in the first place.
Thanks alot for the replies! Since i am pretty new to this i am not sure i want to mess with the bolt. What gear should the tranny be in if i remove it? or should it be in neutral? Also what fluid do you guys recommend that might make it shift smoother and feels less "notcy". Thanks, Chris.
SinisterSHO
Rust free
Every trans seems to like different fluids. I've run Mobil 1, BG and now Royal Purple in different trannys. Usually a synthetic ATF fluid is what is recommended.
frosho
WOLFMAN
I've used Valvoline Maxlife ATF in three different transaxles in the past, and it seemed to work well. My current trans, which I bought off craigslist (unknown history) and installed this summer, likes to grind second and is generally tough to shift, so I might try something else to see if it'll get any better. I don't have high hopes that it will improve (I think the blocking rings are shot), but I'm going to give it a try.
I recommend Mobil 1 Synthetic ATF. I tried Valvoline Dex/Merc after reading recommendations here. It was great at first, but after less than 500 miles I started to have trouble getting it into gear. Back to Mobil 1 and no more problems, knock on wood.
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