I never said that the wix was bad. But you asked what the best oil filter was.

Alright man. Well i was just wonderin. Makin sure what i was doin wasnt bad for my truck.

Sounds like your thermostat may be stuck open. I know my temp will drop if it just idles but while driving it stays at proper operating temperature, even in these winter conditions.

Ok i will check it out. But when i pull a trailer it stays where it needs to