Best transmission fluid?

CMcAllister · 12-31-2022, 12:32 AM

Always Type F dino oil here. Valvoline (Carquest) Type FA. The Carquest stuff is gone, replaced by Fram at Advance stores. Reported to be made by Amalie, or was.

I like Amsoil stuff and tried their Multi Vehicle Synthetic Street ATF once. Heat streaks on the clutch plates made me not use it again. They do a Super Shift Synthetic Type F, but I've never tried it. The plain Type F was cost effective, as I serviced my stuff regularly, wasn't making a ton of power, and never saw any fluid related issues.

Some of the trick, secret squirrel stuff is rumored to be repackaged John Deere Hy-Gard hydraulic oil which seems to be the ticket in applications like Pro Mod. I've even heard of people experimenting with shock oil.

Honestly, most of the guys I know in S/SS just go to WalMart and get their Super Tech Type F and service their stuff regularly. Probably as good as anything in a sub-800-900 HP unit with decent parts. And it doesn't break the bank to change it regularly.

Any tranny (transmission, have to specify these days) guys have any better info, that would be helpful.

12-31-2022, 12:32 AM	#6
CMcAllister Senior Member Join Date: Sep 2006 Location: Fulton County, PA Posts: 615 Likes: 17 Liked 920 Times in 259 Posts	Re: Best transmission fluid? Always Type F dino oil here. Valvoline (Carquest) Type FA. The Carquest stuff is gone, replaced by Fram at Advance stores. Reported to be made by Amalie, or was. I like Amsoil stuff and tried their Multi Vehicle Synthetic Street ATF once. Heat streaks on the clutch plates made me not use it again. They do a Super Shift Synthetic Type F, but I've never tried it. The plain Type F was cost effective, as I serviced my stuff regularly, wasn't making a ton of power, and never saw any fluid related issues. Some of the trick, secret squirrel stuff is rumored to be repackaged John Deere Hy-Gard hydraulic oil which seems to be the ticket in applications like Pro Mod. I've even heard of people experimenting with shock oil. Honestly, most of the guys I know in S/SS just go to WalMart and get their Super Tech Type F and service their stuff regularly. Probably as good as anything in a sub-800-900 HP unit with decent parts. And it doesn't break the bank to change it regularly. Any tranny (transmission, have to specify these days) guys have any better info, that would be helpful. Last edited by CMcAllister; 12-31-2022 at 12:35 AM.