I've got the manual trans in my 2001 F-150. It's got about 9,000 miles on it now. While the shifting is fine, I keep reading about problems encountered with this tranny. Is there a better fluid to run in the tranny that will make it shift better or last longer? I've heard good things about the Redline MTL (synthetic 75/80w). What does Ford recommend? I hope it's not the fish oil (80EP synthetic), that crap is $20 per quart from them. Has anybody changed to something that works?

Thanks,

Mitch

 

hello bronco . . glad your 5 speed is doing fine . . my 5 speed is doing well also . .

there are quite a few posts in the board about people changing to amsoil. some feel that their shifting improved. you might want to do a search or check archives.

 

Mitch,

If you do switch make sure you use ATF fluid.
Any good brand ATF synthetic will do just fine.
I went with the cheapest I could find locally. It happened to be Amsoil. Redline was a close second. Changing the oil will not harm your tranny but no one can guarantee that it will last longer.

Regards

Jean Marc Chartier

 

The transmission requires Mercon ATF, Mercon5 is usually recommended.

I personally use Amsoil ATF. I highly recommend it!

http://www.amsoil.com

 

i used redline D4 ATF, its an atf specifically made for manuals. it improved my shifting quite a bit, but it was $8 a quart (only 4 qts needed though). its mercon, so it wont void the warranty...

 

The above mentioned brands were tough to find here in Edm, so I went with 3.75qts of Mobil 1 Synth ATF.

hth
Bambino