hey everyone, i was wondering what syn has the lowest temp, pumability ????, i know amsoil has a low pour temp, but what about the over the counter brands ???? the wal-mart tech 2000 5w-30 states -45 pour on the back of the bottle, which is the same as M1 5w-30, the last few winters i have used the tech 2000, 0w-30,
and was wondering if there is anything better, for my winter use ???