Best transmission fluid?

[Jeff Stout]

Originally Posted by rboyle

Which trans fluid did you switch from? Just curious where the difference is from and to

Regular shelf bought type F Castrol. I had to much rear gear and tried to tighten up finishline RPM. Changed back to regular type F when I changed rear gears.

[Lenny5160]

I'm surprised to not see a mention of Allison TranSynd in this thread. It seems to be the "gold standard" in the bracket/Super-class world.

[outlaw]

Alex had said he ran the John deere fluid for a 150 passes and then pulled trans for inspection.
Terry

[BRETV]

Originally Posted by outlaw

Alex had said he ran the John deere fluid for a 150 passes and then pulled trans for inspection.
Terry

We did the same with Motorcraft Type F.




Bret Velde
2003 ??/SA

[Mark Ugrich]

Originally Posted by outlaw

Alex had said he ran the John deere fluid for a 150 passes and then pulled trans for inspection.
Terry

Wasn’t the John Deer stuff a few hundredths quicker too?

[outlaw]

Originally Posted by Mark Ugrich

Wasn’t the John Deer stuff a few hundredths quicker too?

Been to long ago don’t remember the difference in E.T.

[outlaw]

Had good luck with many of the tips from Alex including this one and many more miss that guy.
Terry

[1347]

Originally Posted by Lenny5160

I'm surprised to not see a mention of Allison TranSynd in this thread. It seems to be the "gold standard" in the bracket/Super-class world.

I ran it in my C4, Eddie Horensky found no better or worse wear with it than the Amalie Type F. A gallon of Trans Synd cost what a case of Amalie cost so I went with the Amalie and never looked back.

[Joe Strunk]

Anyone ever use this? I've been told by a reliable source it good stuff!

https://www.ebay.com/itm/29546313634...75.c101224.m-1

Thanx!

[Jim Hawkins]

[QUOTE=Lenny5160;673612]I'm surprised to not see a mention of Allison TranSynd in this thread. It seems to be the "gold standard" in the bracket/Super-class world.[/QUOT

This is what I use in the race car, service truck and the Duramax truck. A friend of mine works on Allison transmissions and says it is a extended interval oil, 200,000 miles. Works for me.