broncobilly_69
Full Access Member
My Truck only gets driven about 3-4k miles a year, mostly towing and hauling. I've been changing the oil every six months because I've been told that even though it doesn't have that many miles on it the oil goes bad from sitting in the engine. Anybody know anything about this and if I can get away with only changing the oil once a year? I've been using Cheveron Delo 400. I might consider switching to Amsoil synthetic if that meant I could go a full year between changes.