Best Tranny Fluid

find an additive for transmissions made by BG. add the first step, drive straight to a shop, get a full transmission flush, and get them to add the second step of the BG. that shit is awesome. and you can use regular trans fluid. i have seen this stuff work wonders.

Im an idiot, didnt notice forum

I use Redline Synthetic ATF and I added a black bottle of Lubegard.

c5chris said:

I use Redline Synthetic ATF and I added a black bottle of Lubegard.

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That is exactly what John at IPT recommended. If you don't want to use the OEM fluid, use a good synthetic with a bottle of the black Lubegard.

I personally went with the OEM fluid since you are supposed to replace it kind of often. I believe it is every 30,000 miles. Can someone verify this?

did you notice a difference in shift quality??

mitsu fluid isn't synthetic right?

It is not synthetic.

The transmission is going to wear internal parts either way as long as the bands slip a little into each gear. A larger transmission cooler, fresh fluid/filter, and a shift kit are much more important than using synthetic fluid.

The tranny shop where I got my rebuild likes Mobil 1 ATF Dexron III, but without the LubeGard. They claim the LubeGard makes the fluid more slippery which is not good when the tranny is trying to hold more power. I asked John at IPT about this, and he still recommends the LubeGard to bring the coefficient of friction back in line with what Mitsu recommends (of course I'm not explaining it nearly as well as John did). Both sides of the argument sound pretty convincing, so for now I'm going without the LubeGard as long as my rebuilt tranny is still under warranty.