I have used type F a.t.f. oil in my 727 Torqueflites, some of them since about 1981. A couple have been strip raced and also have towed a 23' boat, overall a lot of hard miles. Other than replacing front seals, none of these have been apart yet and are still shifting hard and accurately. Oil and filters changed regularly. Don't know if this experience translates across to the cast iron Torqueflites, but type F seems to work quite well in the 727s. Shifts are firmer than with Dexron. Bill Huff At 7/25/04 03:18 PM, you wrote: >I remember hearing years ago that type F oil penetrated into clutch and >band material more than the others causing a intended swelling .Fords >clearances were allowed to match the thicken material. It was said that >some used car dealers would throw type F into G.M. and Chrysler cars to >stop them temperarely from slipping. I really want to put the right stuff >in my C-300 Thanks J. Peabody [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> Yahoo! Autos. Everything you need to know about buying or selling a car. FREE Quotes, 360° Tours, Research, Blue Book, Compare Vehicles, Buy Used http://us.click.yahoo.com/kEZsdA/bwnGAA/YiGOAA/8LmulB/TM --------------------------------------------------------------------~-> To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/