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I've done a search, but what is the best tranny fluid?
#966877
04/05/11 01:55 PM
04/05/11 01:55 PM
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Joined: Jan 2003
Posts: 5,784 Corpus Christi, TX
shanker
OP
master
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OP
master
Joined: Jan 2003
Posts: 5,784
Corpus Christi, TX
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I need to do a flush & fill on my 70 Coronet R/T and I'm planning on ordering a PAIL of transmission fluid. I've used Shaefers in the past after reviews on Bobsistheoilguy forums and have been VERY happy with it...
But what do I put in my 727? The car has about 130K miles on it and I dont know if the tranny has ever been serviced, but the fluid has NO burnt smell and is a good *color* of red.
The Federal Government has not yet learned that you cannot legislate morality
1970 Coronet R/T FF4/FF8/V85/V1G 440/Auto/3.23
1970 Coronet R/T FK5/FK5/V8W/V1W 440/Auto/3.55
1970 Super Bee TX9/TX9/V8W/N96 383/Auto/3.91
1975 Duster 360 VS29L5 Daily Driver
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Re: I've done a search, but what is the best tranny fluid?
[Re: Mopar_Country]
#966884
04/05/11 09:25 PM
04/05/11 09:25 PM
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Joined: Nov 2007
Posts: 5,337 the house on the left.
cogen80
master
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master
Joined: Nov 2007
Posts: 5,337
the house on the left.
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Quote:
Type F is supposed to have better lubricating properties and helps firm up the shifts.
i thought it was grittier (sp?) which is supposed to firm up the shifts. in my opinion thats an oldhead thing. with the materials and parts they have now type f is not needed. dextron is fine.
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Re: I've done a search, but what is the best tranny fluid?
[Re: cogen80]
#966885
04/05/11 10:56 PM
04/05/11 10:56 PM
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Joined: Apr 2003
Posts: 12,244 Looking for a way out of Middl...
IMGTX
I Live Here
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I Live Here
Joined: Apr 2003
Posts: 12,244
Looking for a way out of Middl...
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Quote:
Quote:
Type F is supposed to have better lubricating properties and helps firm up the shifts.
i thought it was grittier (sp?) which is supposed to firm up the shifts. in my opinion thats an oldhead thing. with the materials and parts they have now type f is not needed. dextron is fine.
Type F, Dextron, Mercon etc all have basically the same lubricating properties but have different friction modifiers. The friction modifiers cause the clutches to slip a little on engagement and lessen harsh shifts. Type F has less friction modifiers and therefore shifts are firmer. Ford designed their transmissions around that fluid that is why a Ford with Type F shift like a Dodge with Dextron, but a Dodge with type F shifts firmer.
Be cautious of the newer fuids because they are loaded with extra friction modifiers and are very slippery. The lockup convertors are very harsh on lockup if you don't have them. Some of the newer transmissions require CVT fluids and such.
For older stuff like ours I like type F. It is as close to the Dextron II that they were designed for as you will get these days. Often mix it with the current flavor of Dextron.
My
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