Gear oil
 

i have seen many posts lately about how you cant use gear oil in manual trannies but that is far from the truth, i personally used redline gear oil because my mechanic said it worked a lot better than atf and i wanted to show you guys that it is ok to use it, and its actually better than ATF heres a link to the stuff i used its 9.15 a quart http://www.redlineoil.com/products_g...sp?subcatID=18

RE: Gear oil
 

now that i would use it is designed for manual trannys
but the regular gear oil i would stay away from.how much is that$

RE: Gear oil
 

9.15 a quart

RE: Gear oil
 

Jeezz...I hate to be the one to tell you...it will work fine for a while but the manufacturer of the tranny states NOT to use it since the gear oil ruins the synchro cones. If you've seen them...it is basically a friction material bonded to a metal cone. It sort of acts like a clutch to slow the blocking ring to allow the gears to mesh.

I thought the same thing...I was going to use gear oil...figured it was much better since it is thicker and found out why not to use it. Besides the heavier oil just takes more power to move so it adds to parasitic loss.

RE: Gear oil
 

did you read the description of the product? "Provides excellent protection of gears and synchronizers and its balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting."

RE: Gear oil
 

cant argue with that. It says its for manuel trannys. Good enough for me plus Red Line is great stuff.

RE: Gear oil
 

when it comes to lube, REDLINE OWNS!

RE: Gear oil
 

Obviously, do what you want. I have a '69 Mach I that uses gear oil in the tranny..so that would be perfect for it...so there is no surprise that it states that it is good for synchros on the label. The synchro assemblies are different on the late model T-5's and such. I've read that the gear oil will ruin the bond of the material. Only trying to help. Like I always say whatever works...

RE: Gear oil
 

red line is good but so is royal purple and lucas oils

RE: Gear oil
 

I wouldn't use gear oil of any kind, because it doean't hav ethe detergant properties like ATF, and I'm sure Redline makes an ATF...?