C6 Transmission Fluid
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Joined: Dec 2014
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C6 Transmission Fluid
Hello Everyone,
I put a 429 into a 65 F100 with a C6 transmission with a mild shift Kit. Both transmission and torque converter are bone dry. How much total fluid does it require? NAPA says I can use Mercon V, but the dipstick says Type - F. Are these interchangeable?
Thanks,
Jim
I put a 429 into a 65 F100 with a C6 transmission with a mild shift Kit. Both transmission and torque converter are bone dry. How much total fluid does it require? NAPA says I can use Mercon V, but the dipstick says Type - F. Are these interchangeable?
Thanks,
Jim
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,722
Likes: 2,648
From: SE Florida
They are NOT interchangeable. If your trans has the original parts MERCON V will kill it. If it has been rebuilt with newer plates that are compatible with MERCON or MERCON V, then it will shift very harshly with Type F.
Senior User
Joined: Jul 2014
Posts: 307
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From: Northern California
Defiantly go with synthetic AMSOIL, it won't harm your trans and it will last much longer and run cooler. You don't have to worry about type F or mercon it will just work. It cost a little more but well worth it.
Check it here: AMSOIL Synthetic Automatic and Manual Transmission Fluid
Good luck....
Check it here: AMSOIL Synthetic Automatic and Manual Transmission Fluid
Good luck....
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