how often to change tranny oil?

[7mileshome]

To the guys that have already done their transmission flush, does this fix that notchy shift feeling? Sometimes I have to FORCE the car into gear.

[Matrix311]

when swapping out the tranny fluid, how many bottles do we need to do the swap? I'm going to use Redline MT-90.

[Addikted To Boost]

Originally Posted by gsrtype1 Why even change it at 30k? manuel tranny fluid is basically motor oil isn't it? It doesnt get that hot in there and its it a sealed envirment. There not combustion going on in there.

wow...just wow.

[gsrtype1]

Originally Posted by Addikted To Boost wow...just wow.

Gay...lol

[gsrtype1]

There are not huge expolsions going on in ther that get the oil dirty if it gets dark it just residue form the seals in the tranny It gets kinda warm but it s motor oil. The tranny is sealed off so dirt doens't get in ther so why need to change?

[Addikted To Boost]

Eventually all oils lose their lubrication abilities and need to be replaced. Their viscosity and what not gets degraded over time. Plus theirs millions of microns of metal from the gears and other moving parts trapped in the oil...

[Crossbow]

You'd probably be fine changing the fluid every 50k if you weren't tracking or draggin the car. I generally stick to 35k changes with synthetic, unless I'm going to the road course, then the standard rule is before you track each year. (Also do brake fluid at the same time).

6k, even 15k, is beyond overkill. Gear oil doesn't encounter any real degrading factors other then heat, and even then, it's pretty unlikely our transmission will even encounter stressful heat scenarios if you aren't going to the drag strip or road course.

Now of course, if you're running the car hard, and working the LSD, then sure, stepping up your change interval is a good idea.

As for BG Syncromesh...my friend Kyu is running it in his speed6, and still has grinding/cold shift issues in the morning. (We are in MD/VA)

[div2]

Originally Posted by 7mileshome To the guys that have already done their transmission flush, does this fix that notchy shift feeling? Sometimes I have to FORCE the car into gear.

The Ford Full Synthetic MT Fluid I used improved the shift action to an amazing degree- hot or cold.

[div2]

Originally Posted by Matrix311 when swapping out the tranny fluid, how many bottles do we need to do the swap? I'm going to use Redline MT-90.

You'll need three quarts.

[div2]

Originally Posted by Crossbow You'd probably be fine changing the fluid every 50k if you weren't tracking or draggin the car. I generally stick to 35k changes with synthetic, unless I'm going to the road course, then the standard rule is before you track each year. (Also do brake fluid at the same time). 6k, even 15k, is beyond overkill. Gear oil doesn't encounter any real degrading factors other then heat, and even then, it's pretty unlikely our transmission will even encounter stressful heat scenarios if you aren't going to the drag strip or road course. Now of course, if you're running the car hard, and working the LSD, then sure, stepping up your change interval is a good idea. As for BG Syncromesh...my friend Kyu is running it in his speed6, and still has grinding/cold shift issues in the morning. (We are in MD/VA)

Good advice. My track rats get 30K changes, but it's probably overkill...

[bykeryder4life]

Originally Posted by gsrtype1 Gay...lol

haha you went like 50k without changing your tranny fluid I think i read somewhere...Hell I guess it's fine but I wanted to say 30k to be conservative so people dont freak out. I will go no more than 30k