Originally Posted By: mark pruett
Originally Posted By: ac700wildcat
I live in ND and our winters here get waaaay colder that that.
I guess my point is that you will be fine running a 5w30 dino oil.
Don't people up there use plug-in block heaters and other exotic equipment that people in warmer climates don't need, or does everyone just use 5w-30 and park outside without a block heater in ND?
At any rate, I bet the OP will be fine in Missouri; my 05 Dakota says to use 5w-30 in temps under 100F and 10w-30 in temps above 0F so either should cover winter in MO.
Yes, a lot of people do use block heaters, but they really only warm the coolant up and don't help at all with warming the oil, except for maybe what is in the oil passages of the motor. I have a 2001 daewoo leganza that doesn't have one and starts just fine no matter what temps I've started it in. I'm not sure of the physics, but I think a block heater tends to help more with keeping the cylinders warm to help with combustion. Some cars wouldn't start without a block heater below certain temps.
There are also magnetic heaters that you can stick to your oil pan, but I've only seen one used a few times when there were troubles with getting a car to turn over. Heated battery blankets are also available, but not many people use those either.