>for oil in our area, but if you park outside and don't have an >oil pan heater or block heater, you might go 5w30. Hmmmmmm....I don't think so. 5w30 is like water, and even when it needs to flow in the cold, synth 15w-50 for me....Everyone, including mechanics and dealers, have told me that 5w-30 would be terrible for my car, taking into account it's age and me driving more than 5 minutes a day...