you will hear people say that Dextron ATF has friction modifiers to allow smooth shifting of automatic transmissions.

F type does not, do these modifers wreck glo plugs ? my answer for me is, not yet. My Nelsons rest with ATF in them.

You how you buy a quart of ATF in those square plastic bottles? I take a old 409 spray bottle nozzle and spin it onto the top of a quart of ATF and wa-la, after run oil on tap. squert, squert, squert

the additive for posi-traction rear ends had a componant of whale oil, wayyyyyy back. not no mo