[FC] What type of synthetic transmission fluid is OK in a Powerglide

[corvanatics@corvair.org]

   I've heard that If you go to a synthetic on an old engine, you may get a 
lot of leaks. The detergent effect of the synthetic will clean out the gunk 
filling any little cavities and imperfections in the gasket; and this may not 
leave enough gasket to hold the pressure. 

Bill