[oldeguy]

Go ahead, use it. If, as Mason says, it'll warm up the car faster. However, you can use synthetic oil and that won't thicken in the cold, so you won't have to worry about starting the car. I've used synthetic for a while and never had any problems in the cold (other than not having heated seats) :lol: Maybe our experts in the Prairies will give us the lowdown on COLD WEATHER starting. We don't get really cold here in Southern Ontario.