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Its not only about leaving the car running so it can get stolen, You are also polluting. I cant remember who said it ,but you only need to let your car warm up 10-15 secs to get the oil running through it.


It's not the oil I'm worried about.... it's the shivering sitting on freezing leather seats.... I let mine warm up, usually I am out shoveling snow or something at the same time though.