Posted By: TimS
Type "F" Tranny Fluid ? - 08/02/12 11:46 AM
Does it hurt to put Type F tranny fluid in a Mopar instead of the Dexron?
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Does it hurt to put Type F tranny fluid in a Mopar instead of the Dexron?
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It's not about "cushioning", it's all about the coefficient of friction (the ratio of the force of friction between two bodies). Type F has a more aggressive COF.
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It's not about "cushioning", it's all about the coefficient of friction (the ratio of the force of friction between two bodies). Type F has a more aggressive COF.
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no one knows if type f can be ran in a non lock up A-518?
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no one knows if type f can be ran in a non lock up A-518?
I wouldn't. As stuff get's newer it get's pickier.
Back to the thread, this debate comes up once in a while, but is really moot.
The 727 and 904 are kinda like the cave men of automatics. They work, and work well, with almost any kind of fluid. I've seen guys on here testify to using straight engine oil, cause it would lubricate better.
In any case, will type f work? of course, and wont hurt anything that was any good to begin with..
My question has always been, and will always be, why would you bother? Even ford gave up the stuff in 79. Modern fluids are MUCH better suited for extreme temps etc.
We could use Bias ply tires, and they would work fine, but clearly there is better stuff out there, and the same goes for type F.
FWIW I use either Mercon 5 or atf plus 4 whatever the current stuff is
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The main thing was you could use Type F in anything, but you could not use Dexron in a Ford. Ford used different material (I was told paper based) in the bands, and Type F was used to keep them from burning up.
B&M Trick Shift that used to be $4 a quart when Type F was $1 was just Type F with blue dye instead of red.
I use Type F in all my 904's. I use ATF +4 in all my OD trans'.
Just a habit I'd guess.
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i got a question that no one has really been able to answer, can type f be used in a non lock up A-518 sucsessfully? I know for the first 3 gears the type f would do fine, but what i wanna know is if type f is good enough to keep the overdrive planetery gears happy.
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Type F seems to be one of the ATF formulations in the many graphs in this SAE paper about Mopar 9176, such as Figure 9
http://u225.torque.net/cars/tech/trans/982674.pdf
TEST FLUIDS -
Table 1 provides elemental analyses and some typical physical characteristics of the two key ATFs evaluated.
ATF A represents the current Chrysler Factory-Fill ATF (ATF+3, aka 7176)
while ATF B is the new factory-fill ATF (+4 aka 9602)
... Torque Converter Clutch Performance –
The goal was to develop a fluid that would match or exceed the holding capacity of ATF A. During the course of the program, many candidates were screened for clutch holding capacity. Figure 9 shows how the new ATF B compares to the current ATF A in the bench test developed to simulate the holding capacity of the torque converter clutch.
Also shown are the results on two other potential ATF candidates from the development program.
ATF F (Mercon?) gave lower coefficients in this test compared to ATF A. and also caused some slippage in the proprietary Chrysler TCC test. However vehicle shift quality performance of ATF F was acceptable.
On the other hand ATF G (Dexron3 ?) gave acceptable TCC performance but provided harsher shifts in the vehicle
[7] Chrysler Corporation, “Engineering Specification MS- 7176 Change E”, May 14, 1997
[8] Ford Motor Company, “MERCON Automatic Transmission Fluid Specification trademarked for Service”, September 1, 1992
[9] Ford Motor Company, “MERCONV Automatic Transmission Fluid Specification Trademarked for Service”, February 1, 1996
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Type B is the original Dexron. Dexron is a GM test standard.
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Type B is the original Dexron. Dexron is a GM test standard.
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Type B is the original Dexron. Dexron is a GM test standard.
I had to re-read the SAE doc, what did Chrysler develop from this, was it Dexron II? Here's the title of the SAE document again, the heading suggests something NEW:
Development and Introduction of Chrysler’s New Automatic Transmission Fluid
Dennis W. Florkowski and Tracey E. King
Chrysler Corporation
Anthony P. Skrobul
Texas Lubricants
James L. Sumiejski
Lubrizol Corporation
Then this:
TEST FLUIDS - Table 1 provides elemental analyses
and some typical physical characteristics of the two key
ATFs evaluated. ATF A represents the current Chrysler
Factory-Fill ATF, while ATF B is the new factory-fill ATF.