I am guessing no after reading the last hour about the gm bulletin regarding dex VI etc.. I just put the maxlife in today too! Ugh. Just seemed like i would be fine since it was full syn. So, if not, do I go to a regular ol' dex III or to mobil 1 ATF? I know amsoil is good but want quick availability. The truck is a 2004 gmc. Thx