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ss3011 · 01-09-2015, 02:02 PM

I recommend Castrol TransMax (which is also marketed as Allison TransSynd) , or Redline D4 . These fluids are basically a Dextron equivalent.

One thing that I noticed is the synthetics seem to perform the same all day long, where the mineral based (non-synthetics) seem to be slower on the first run of the day.

The friction package built into Dextron oils compared to Ford type F is quite different. Dextron has a higher static coefficient of friction, then Ford type F, which basically means it holds the clutches without slipping, better then type F . If you run lower line pressures in the transmission, this could be plus !

01-09-2015, 02:02 PM	#12
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 909 Likes: 70 Liked 239 Times in 114 Posts	Re: Transmission fluid I recommend Castrol TransMax (which is also marketed as Allison TransSynd) , or Redline D4 . These fluids are basically a Dextron equivalent. One thing that I noticed is the synthetics seem to perform the same all day long, where the mineral based (non-synthetics) seem to be slower on the first run of the day. The friction package built into Dextron oils compared to Ford type F is quite different. Dextron has a higher static coefficient of friction, then Ford type F, which basically means it holds the clutches without slipping, better then type F . If you run lower line pressures in the transmission, this could be plus !