Does Don Verity agree that ATF+4 is suitable for a 1957 Torqueflite, whereas he has long specified Type F for that application? Even if so, is there any advantage to ATF+4 instead of Type F? Is there a possible problem with ATF+4 being synthetic and perhaps not completely compatible with original friction and softgood materials (clutch bands, seals, etc)?
Ray Melton 1957 Chrysler 300C
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ATF + 4 is backwardsCompatible according toChrysler for modern Torque Flites.--
Bob Haag
On Jun 4, 2023, at 4:37 PM, Steve <saforwardlook@xxxxxxxxx> wrote:
It seems that I have some cars that were filled with Dextron II and some with Dextron III as time has progressed. So is Dextron III backwards compatible with Dextron II? Given a brief search of the internet at the time of changeover, most were saying ATFIII is backwards compatible but not all replies agreed but most said they are.
Steve Albu
--On Tue, May 23, 2023 at 6:40 AM 'Tony Rinaldi' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:
Hi Don,--
There is a Type FA. Any opinion whether it could also be used? It stands for Ford Automatic or Ford Anti Foaming Agents.
I heard that the original oils had Sperm Whale oils and no longer were available?
Tony
Here is a write up from the big block Ford site:
On the older shift kits from b&M they would recomend type F trans fluid for use in the brand x transmissions .the Type F helps give a firmer shift but doesn't hold up well to heat.
Type FA Transmission Fluid
Type FA is a high-quality transmission fluid specifically engineered to protect and prolong the life of automatic transmissions. It is designed for use where Ford specifications M2C33-F, M2C33-G and Ford Type F fluids are recommended.
•Provides excellent resistance against clutch slippage for extended transmission life
•Provides excellent resistance to fluid oxidation/breakdown at high temperatures
•Approved for 1980 and earlier Ford, Lincoln and Mercury vehicles
•Approved for use in Mazda, Saab, Toyota, Volvo and other Japanese and European vehicles requiring a Type F fluid
•Other applications include air compressors, general purpose hydraulics and power steering systems
zoil A/C Compressor oil works good for modified high hp transmissions. type FA stands for ford automatic or ford anti foaming agents
On Monday, May 22, 2023, 6:52 PM, 'Donald Verity' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx> wrote:
Do not use type A. Go with Dexron III or type F. Either one will shift the same. Stay away from synthetics.Don
--Hello, everyone:
I recent had a discussion with another "gearhead" regarding the friction modifier in Type F. He said type F would hold up better in high performance engines than Type A. Has anyone used Type F in their engines? Any recommendations?
Best,Ron KurtzE# 292
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