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Re: Type "F" Tranny Fluid ?
[Re: 360view]
#1278108
08/20/12 06:37 PM
08/20/12 06:37 PM
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Joined: Jan 2003
Posts: 21,533 N.E. OHIO, USA
A12
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 21,533
N.E. OHIO, USA
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Quote:
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
According to the SAE doc ATF B is the best of the best at present? Even better than F-Type ATF for lock-up and unlock So where do we get this ATF B???
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