1974 Ford maverick 250ci 4.1L (six inline), Hi my car have c4 automatc transmision and have a power steering, Here in my country nobody sell ATF Type F fluid, only sell Dexron II and Dexron III, which Fluid Type I can use for my tranmission and steering?
See if you can find a dealer for "Slick 50" they sell a type F compatible fluid. You can use dexron III in your power steering but not in the C4.
Yep! I have even recommended Mercon V in some C4s but the fluid has to be chosen for the line pressure, the friction material and the use of the transmission. If standard friction material is used you get the best life and performance from type F fluid.
Yesterday I visited the www.mustagmontlhy.com site and I did read the following... In the old days, Ford specified the use of Type F automatic transmission for seal, clutch, and band compatibility in its transmissions. These days, Type F (ESW-M2C33-F) isn't mandatory because Ford stopped specifying its use in 1977 with the advent of more advanced friction materials. As older Ford transmissions have been rebuilt and had clutches and bands replaced, the use of Type F has been less of a concern though it remains desirable. Think of Type F as a stickier fluid, with friction modifiers that provide firm clutch and band engagement, which also means longer service life. It is generally suggested you use Mercon V synthetic transmission fluid if Type F cannot be found. Mercon V is compatible with all kinds of automatic transmission fluid types according to sources we've consulted. Your transmission fluid's job, aside from the obvious for hydraulic control system function, is to cool and lubricate as it travels throughout your transmission. A C4's moving parts generate a tremendous amount of heat, which is why clean fluid and abundant cooling capacity are so important. Read more: http://www.mustangmonthly.com/techar...#ixzz1OgeSNizt
The friction materials in the C4 kits have not changed. Borg Warner and Raybestos (the two largest manufacturers of friction materials) still make the same parts that were made for the C4 in 1970. I am glad to see that Jim Smart points out in his article that type F is still the "PREFERRED" fluid for the C4. I am sad to see that he recommends Mercon V if type F is not available. The fully synthetic oil will cause excessive slippage and heat build-up in the C4. The biggest problem is that the fluid can take the extra heat but the friction material can't. If you use carbon or Carbon/kevlar frictions then you have to use the Mercon V fluid but not with the standard friction material in the C4.
Then you should run Mercon V and the largest cooler you can buy. Running type F with kevlar frictions it will burn very fast due to the heat build up from the slipping frictions. Note: Kevlar friction have a very high (much higher than conventional friction materials) dynamic coefficient of friction which means they slow down very fast once they are applied, BUT (BIG BUT) they have a much lower static coefficient which means that they never actually stop unless the power is completely removed (no torque). This generates a lot of heat so you need a fluid that has a higher lubricity (lubricates better) and can withstand very high temperatures for a long time. The engineered synthetic fluids are designed to do that job. You would never feel the slippage - at full torque loads it is as little as 50 rpm ( when your engine is turning 6500) so it is just an acceptable trade off for the very fast operation of the friction material. It is also the reason you need to keep things lubricated and cooled. Mercon V and kevlar friction materials are engineered for each other.
The higher stall will make more heat at "in-city" speeds - more reason to get a really big cooler. Good luck with the car - it sounds like it will be great!
