Trans fluid for RCD converter and suncoast clutches.

[strokinKR]

Guys what is my best option for fluid with rcd tc and suncoast clutches. Suncoast said mervon lv is fine but RCD said dont use synthetic. Well mercon lv is synthetic. I would prefer synthetic for obvious reasons so whatcha got for me?

Thanks

 

[madman1234509]

I'm using whatever the fluid is the ford says to run in the 5r

 

[strokinKR]

And you have a RCD tc too?

 

[BFT]

Yes he is

 

[madman1234509]

Yep rcd converter

 

[strokinKR]

So I can just use mercon lv? Double checking before I ruin a $3500 transmission.

 

[Mark Kovalsky]

Did rcd say why you shouldn't use synthetic? Many people think synthetic is "slipperier" than conventional fluid. That is NOT true.

 

[strokinKR]

Yeah he said synthetic is too slick . Dunno

 

[04stroker]

Yeah he said synthetic is too slick . Dunno

Who told you that there? You should defnitley use the synthetic we use fords fluid, schaffers, or amsoil.

 

[Wayne]

Those clutches should be fine with generic dex/merc fluid. The clutch material is primarily the reason for different fluid types. Both Alto and Raybestos standard clutch materials are compatible with the generic stuff, but I see no reason to not run any fancy synthetic crap if it makes you feel better. Consult your sales person for warranty considerations to be sure though.

 

[strokinKR]

Those clutches should be fine with generic dex/merc fluid. The clutch material is primarily the reason for different fluid types. Both Alto and Raybestos standard clutch materials are compatible with the generic stuff, but I see no reason to not run any fancy synthetic crap if it makes you feel better. Consult your sales person for warranty considerations to be sure though.

Yeah bud im not trying to use anything fancy just Motorcraft Mercon LV.

 

[Wayne]

FWIW, I know of a STOCK 54110 with an "RCD" converter putting down 650 HP reliably on conventional dex/merc fluid, and shifting great.

 

[strokinKR]

FWIW, I know of a STOCK 54110 with an "RCD" converter putting down 650 HP reliably on conventional dex/merc fluid, and shifting great.

okay so what brand should I buy. I really don't care what I run as long as it's going to be good for the clutches in the transmission and the torque converter

 

[Wayne]

I'm only telling you what I've tried, and seen work well. I don't want you knocking on my door, blaming me when something random kills your trans, especially if RCD says not to do it. On our elite diesel transmissions, we do recommend using regular dex/merc, but have no problem if a guy wants to use a synthetic, even on a brand new unit.

 

[Mark Kovalsky]

Yeah he said synthetic is too slick . Dunno

I DO know. Synthetic MERCON is no slicker than conventional MERCON. Many people think otherwise, they're wrong.

 

[SICKS LITER]

SP and LV have more friction modifier in them

 

[Erikclaw]

I have only ran synthetic SP and LV in my trans. Never an issue.

 

[strokinKR]

this is why I am so confused. does anybody have anything negative to say about me using mercon LV

 

[dieseljosh07]

Nothing negative about Mercon LV fluid. LV and SP are compatable with each other and SP is alittle cheaper so that would be my choice.

 

[Erikclaw]

this is why I am so confused. does anybody have anything negative to say about me using mercon LV

That is what Ford recommends so I can't see how it could hurt a performance transmission.