should i replace the tranny fluid

[custom e30]

ive in person see multiple local guys get a e30, and put new tranny fluid in there automatic tranny and BOOOOOM!!! the gears seize up and wont shift, i have heard it also has happened in a manual trans???????

with this said i have a 1988 325i with a manual trans, im doing a stage 4 clutch and the usual maintenance along with it, rear main seal, front and rear tranny seals, flywheel resurface, a good cleaning and some other stuff,

while the tranny is out of the car i checked the fluid, its low and brown, which means its prolly burnt, how safe is it to add new fluid to a manual tranny, is there a specific fluid i could use and wouldn't cause me any issues, thanks in advance for the help

[Bmr]

ive in person see multiple local guys get a e30, and put new tranny fluid in there automatic tranny and BOOOOOM!!! the gears seize up and wont shift, i have heard it also has happened in a manual trans???????

with this said i have a 1988 325i with a manual trans, im doing a stage 4 clutch and the usual maintenance along with it, rear main seal, front and rear tranny seals, flywheel resurface, a good cleaning and some other stuff,

while the tranny is out of the car i checked the fluid, its low and brown, which means its prolly burnt, how safe is it to add new fluid to a manual tranny, is there a specific fluid i could use and wouldn't cause me any issues, thanks in advance for the help

Side of transmission will tell you. Either ATF or Redline MTL fluid. Many threads about years and transmissions and what they take i've just used that method. Unless the label has came off.

[custom e30]

but with a tranny this mold and the fluid never being replaced, its a risk, so i wanna know if anyone else has been successful with new fluid and the gears not locking up, the fluid in mine has never been replaced so its very broken in for thaat fluid, new fluid wouldnt be any better lubed, so friction could happen and cause issues

[Bmr]

but with a tranny this mold and the fluid never being replaced, its a risk, so i wanna know if anyone else has been successful with new fluid and the gears not locking up, the fluid in mine has never been replaced so its very broken in for thaat fluid, new fluid wouldnt be any better lubed, so friction could happen and cause issues

Dang that is shitty. I would think new fluid would make the gears sync smoothly, because the old fluid wasn't doing its job. Might even get some junk out of it. But yeah i have never heard of it not locking up. I'm sure others will give some feedback here.

[jlevie]

In the case of a manual transmission, a fluid change with the correct fluid will never result in the death of transmission.

[custom e30]

thanks for the vote of confidence, im gonna change it tomorow