Best ATF for Ford Ranger manual tranny

[dailydriver]

Originally Posted By: EricF
when my 93 Ranger went in for a new clutch, I had the tranny inspected because it was out. Well I had my option of either quaker state or amsoil atf. I asked for Redline and was told no. then asked for valvoline and was told no. then I said what if I bring it for you? Well there would be no warranty if I did.
So my tranny has quaker state regular atf in. Nothing wrong with it..shifts just fine.
Warranty's up and it's due for a change.. I'm going with the Redline D4 4this time.


They were going to void a clutch warranty for using a synthetic transmission fluid?!?!

 

[Jason2007]

Royal Purple Synchromax FTW

 

[grcmptrnrd]

I just changed from Mobil1 w/ ~35k to Valvoline MerconV. It was a bit rough at first, but after about 200 miles, it's shifting as well as the truck did with the OEM fluid, better than the Mobil1 ever was and much better than the MTF.

 

[mechtech2]

grc - You have MTL going from best to worst [concerning shifting].

 

[grcmptrnrd]

Sorry for the confusing wording. Ranked best -> worst for each truck:

2000 Ranger:

MTL (Best)
OEM, Mobil1, Amsoil ATF (all 3 about the same)


2009 Ranger:

OEM & Valvoline (Best)
Mobil1
MTL (Worst)