Author Topic: Convertible Top Motor Fluid  (Read 5208 times)

Offline Skyway65

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Convertible Top Motor Fluid
« on: August 26, 2011, 08:19:20 AM »
This question has been asked before but I can't find a definite answer-so I'll ask it again. What fluid do I use for the power top on a '65?  The manual calls for Type A transmission fluid. The original fluid I drained from my car's system was clear.  Some have recommended using Type F or Mercon fluid.  What will work as I get this back together; the top goes on next week.  :D TIA
Gary Schweitzer
MCA #00181
Traverse City, MI

"A work of art in the form of a Mustang"

Offline Twilight65

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Re: Convertible Top Motor Fluid
« Reply #1 on: August 26, 2011, 09:41:19 AM »
Gary,
I was going to use Dextron III ATF fluid in mine from what research I've done.
Dave
65 Coupe Dearborn Scheduled Build July 9,1965 289/C4
66 Sprint Conv. Dearborn Scheduled Build May 13, 1966 200/C4

Offline CharlesTurner

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Re: Convertible Top Motor Fluid
« Reply #2 on: August 26, 2011, 10:03:46 AM »
Most use Type F.
Charles Turner - MCA/SAAC Judge
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Offline Skyway65

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Re: Convertible Top Motor Fluid
« Reply #3 on: August 26, 2011, 10:20:55 AM »
thanks for the quick replies-that's what I'll be working on today  ;)
Gary Schweitzer
MCA #00181
Traverse City, MI

"A work of art in the form of a Mustang"

Offline buckeyeresto

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Re: Convertible Top Motor Fluid
« Reply #4 on: August 27, 2011, 03:56:51 PM »
fluid for snowplows works about the best, its clear and no freeze


Offline 68 S Code

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Re: Convertible Top Motor Fluid
« Reply #6 on: September 06, 2011, 07:50:51 PM »
You should use type F fluid. I recommend NAPA brand as it's viscosity is a bit higher and it will not seep past seals as easily as a less cuscus fluid. Some say you can use brake fluid but that sounds like a disaster waiting to happen.

Offline NEFaurora

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Re: Convertible Top Motor Fluid
« Reply #7 on: September 10, 2011, 10:30:20 AM »

Got to disagree here... I did lots of research on this one.

You should go with Dexron Mercon...even though the original was Type "F".  It seems that the Type "F" will eat the rubber seals over time, where the Dexron Mercon will not. Both do the same job. The Type "F" has properties in it which do not like rubber...

I vote Dexron Mercon....Which is what I have in my pump.. Works perfect.. I would suppose this is the reason that they went away from the Type "F" fluid over the years, but I am not a chemist obviously.

Tony Kovar (NEFaurora@aol.com)
1965 Mustang Convertible 200 cid 3spd manual
1966 Mustang Convertible Sprint 200 C4 Auto
2007 Mustang Convertible V6 Auto with "Pony Package".
1966 Mustang Sprint 200 Registry Owner/Moderator
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