yes, pretty "normal" that the oil is way thick in winter, you could run lighter oil for the winter if you'll be using the truck, or you might want to consider some type of block heater if you're gonna park it outdoors in freezing temps
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
