Hey guys, Do you know if its ok to use aluminum fuel line for transmission cooler lines? I have a BTE cooler with AN fittings, and what I'd like to do is use 3/8 aluminum line from the trans to the cooler. Any problems with doing this? TIA!

-Adam

Adam,

My only concern would be about mounting the aluminum line right to the transmission. Aluminum does have a finite lifespan when it comes to flexing. Engine torque twists the whole drivetrain. I would be afraid that overtime, vibrations and torque twisting would take it's toll on the line and develop a crack. I think if you used a flexible coupling at the transmission you would be safer.

And about the only thing worse than ATF for fires is gasoline. Spray finely atomized ATF on a hot exhaust manifold and see what happens!

Stay with steel, seamless tubing.

I would not use it myself. Why not just get some 6an line and run it to your cooler.

Thanks for the info guys! Looks like it'll be AN lines graemlins/thumbsup.gif

Aluminum line works fine.

AN lines with a rubber liner will swell and prevent any circulation.