01 Outback base
i live in Central Oregon, and it frequently gets cold here, not nearly as harsh as some climates but it is pretty bad sometimes. so i am wondering if a battery heater and block heater would be worthwhile for me. would it make the car last longer, or the heater come on faster. I am fairly certain that the heater heats the water in the radiator and circulates it, but would that warm the oil so as to make for easier start ups and less wear?