Author Topic: T5 fluid additive (Read 950 times)

KGMUSTANG · « **on:** January, 20, 2010, 04:58:14 PM »

:doh Has anyone heard of, or tried, using Ford's FRICTION MODIFIER in a T5 tranny? A article in the June 1991 issue of "Muscle Mustangs & Fast Fords" (page 54 do's & don'ts) recommends 2 oz added to the Dexron II/Mercon ATF.

cmayna · « **Reply #1 on:** January, 20, 2010, 06:50:30 PM »

Nope. Per my tranny guy I am using Royal Purple's ATF in my T5.

bigb427 · « **Reply #2 on:** January, 20, 2010, 06:52:24 PM »

The Ford shop manual makes no reference to using friction modifier in a T5.

Dennis Harrelson · « **Reply #3 on:** January, 21, 2010, 05:02:33 AM »

Isn't friction modifier for the clutches in a differential? What purpose would it serve in the trans?

bigb427 · « **Reply #4 on:** January, 21, 2010, 07:27:11 AM »

While most gear oil does not include friction modifiers, ATF does include it.

The sychro's in a T5 use a clutch like material, I suppose that's where the idea came from.

buening · « **Reply #5 on:** January, 21, 2010, 08:44:49 AM »

Quote from: bigb427 on January, 21, 2010, 07:27:11 AM

While most gear oil does not include friction modifiers, ATF does include it.

Took the words right out of my mouth! I don't see the need for extra friction modifiers in a fluid that already has it.

Sluggo · « **Reply #6 on:** January, 21, 2010, 09:29:41 AM »

Quote from: buening on January, 21, 2010, 08:44:49 AM

Took the words right out of my mouth! I don't see the need for extra friction modifiers in a fluid that already has it.

+1 and besides, Ford friction modifier smells like burnt, creamed anus. :craz

AzPete · « **Reply #7 on:** January, 21, 2010, 09:39:56 AM »

Quote from: Sluggo on January, 21, 2010, 09:29:41 AM

+1 and besides, Ford friction modifier smells like burnt, creamed anus. :craz

Now, I know what the Ford friction modifier smells like from using it, and now I know what other things smell like....yuk...and I really didn't need to know that.

Dennis Harrelson · « **Reply #8 on:** January, 21, 2010, 09:43:13 AM »

Quote from: bigb427 on January, 21, 2010, 07:27:11 AM

...
The sychro's in a T5 use a clutch like material, I suppose that's where the idea came from.

I suppose. I can understand that it's included in ATF because of the clutches in an auto, but I didn't get it for a manual. I always thought ATF was recommended for T-5s just because it's a lighter oil, didn't realize the synchros were friction material.
Thanks.
And thanks, Sluggo, for giving the odor a reference. How is it you know how burnt, creamed anus smells?

monkeystash · « **Reply #9 on:** January, 21, 2010, 10:08:46 AM »

Quote from: Dennis Harrelson on January, 21, 2010, 09:43:13 AM

And thanks, Sluggo, for giving the odor a reference. How is it you know how burnt, creamed anus smells?

I'm pretty sure he learned that in prison.

daveSanborn · « **Reply #10 on:** January, 21, 2010, 10:37:28 AM »

Quote from: monkeystash on January, 21, 2010, 10:08:46 AM

I'm pretty sure he learned that in prison.

If I remember correctly, Craig visited him last Summer.

silverblueBP · « **Reply #11 on:** January, 21, 2010, 01:30:33 PM »

Quote from: daveSanborn on January, 21, 2010, 10:37:28 AM

If I remember correctly, Craig visited him last Summer.

ROTFLMFAO

cmayna · « **Reply #12 on:** January, 21, 2010, 01:33:38 PM »

buening · « **Reply #13 on:** January, 21, 2010, 01:38:28 PM »

Quote from: cmayna on January, 21, 2010, 01:33:38 PM

What, no cream filling?? :barf

Starfury · « **Reply #14 on:** January, 21, 2010, 05:56:55 PM »

GM's Syncromax (Royal Purple and Redline make their own similar blends) is a common swap in manuals that are having a hard time shifting. Supposedly the extra friction modifiers help with the syncro clutches.

And yes, the friction modifiers in standard DexIII/Merc are used in WC T5's to help smooth out shifts by providing better friction qualities for the syncro clutches. The lighter oil also helps improve efficiency. Unfortunately, ATF doesn't lube bearings quite as well as gear oil, so bearing failures tend to be more common than in older trannies that run gear oil.