Type F was developed by Ford (hence the F) to help their auto trans shift more crisp like the Chrysler and GM autos I was told. Type F has less "cushion agents" in it to achieve the firmer shifts. With less cushion agents it should shift firmer but not be a problem for other components that need lubrication. That's all they do with so called "racing automatic transmission fluid" is reduce the cushion agents to minimize the clutch engagement slip or cushion.