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MTX-75 Tranny Fluid

9.2K views 43 replies 22 participants last post by  S2Texas  
#1 ·
Just checking my owners manual for an oil change and noticed that the recommended tranny fluid for the 5spd is a synthetic fluid. Does this mean it comes from the factory w/syn in the box? Is there much of a difference between Ford Syn fluid and say Mobile 1?
Thanks,
Tim
 
#5 ·
Be careful which Synchromesh you use. There are sevral types, for various aplications. Expect to pay $12-15 for the correct fluid, depending on the dealership. It's sill cheaper than the Ford MTX specific fluid though.
 
#9 ·
i just called my local GM dealer and got GM syncromesh. what are the differences between them.

GM only offers ONE synchromesh. No worries.. (I am a tech at a GM dealer)
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Scott
 
#10 ·
has this newer snythetic from ford helped to get rid of that crappy mtx75 sound at low rpm where it kinda sounds like what i can only really describe as like a 'dragons breath sound'(yeah i have no idea how to describe that sound but im sure many know what im talkin about here)???
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#13 ·
I have played with just about every kind of MTF on the market and have yet to find anything to completly cure this problem. Howeverm the synchromesh IMO has done the best so far.
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Who knows.


Scott
 
#14 ·
Syncromesh is a name GM has aplied to manual transmission, transaxle, and axle lubricants. The fluids have different specifications, and are in different containers, but the bottles all plainly say 'Synchromesh Fluid' on the label.

For those who don't like the idea of running GM spec fluid, we have used this fluid for over 10 years now when installing Tremec (OE supplier to Ford) TR-3550/4250 performance transmissions in Mustangs. When the Focus started exhibiting the same synchro problems we encountered in the Mustangs equipped with Tremecs (prior to using Synchromesh fluid), this fluid became an excellent option. I have since tested the Ford synthetic fluid, and found the Synchromesh my preference.
 
#18 ·
Syncromesh is a name GM has aplied to manual transmission, transaxle, and axle lubricants. The fluids have different specifications, and are in different containers, but the bottles all plainly say 'Synchromesh Fluid' on the label.

For those who don't like the idea of running GM spec fluid, we have used this fluid for over 10 years now when installing Tremec (OE supplier to Ford) TR-3550/4250 performance transmissions in Mustangs. When the Focus started exhibiting the same synchro problems we encountered in the Mustangs equipped with Tremecs (prior to using Synchromesh fluid), this fluid became an excellent option. I have since tested the Ford synthetic fluid, and found the Synchromesh my preference.
whats the part number for the correct synchromesh fluid for the mtx75?
 
#20 ·
GM# 12345349 this is the regular old synchromesh. Not the friction modified (intended for vettes) List on it is about $9 but dealer cost is only about $3.50 so they should sell it to you for about $6-$8 quart, depending on the mood of the parts man.


Scott
 
#21 ·
2 Quarts of Mobil 1 Syn ATF and 1/2 bottle of Ford Friction Modifier (I used this back in my Contour Days) it makes a nice smooth shift. Pep Boys has the ATF for 6 bucks a quart and the Friction Modifier should be between 3-4 bucks for a 4oz bottle.
 
#22 ·
Hey, thanks for the link. Made my fluid change a snap. I stuck with the Ford recommended fluid. Got it for $12 something a quart at the parts counter. Used just a hair over 2 quarts. I know every $ counts but I just can't see skimping on tranny fluid when you change it so infrequently. It's not like you're changing it every 5k miles.

Edit: And by the way, I did change it hot. Oil always seems to drain better when hot. And when hot, it should be nice and mixed up to help take out any particles with it. Really wasn't difficult to change hot at all.
 
#23 ·
Walter, I've never used the GM stuff and I'm sure it's top notch, but you should give the Torco RTF a whirl in one of your cars just to compare.
What is Torco RTF and how does it compare to Torco MTF?
Torco RTF is a fully synthetic transmission fluid.
 
#24 ·
GM# 12345349 this is the regular old synchromesh. Not the friction modified (intended for vettes) List on it is about $9 but dealer cost is only about $3.50 so they should sell it to you for about $6-$8 quart, depending on the mood of the parts man.


Scott
whats the part # with the fancy new additive?

or should i just stick with the regular synchromesh stuff?
 
#26 ·
is the reigning consensus just to get the regular synchormesh stuff??? I bought this yesterday at a chevy dealership @ 12.83 a f'in quart
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i hope i can tell a diff between the gm stuff and mobil1.