Your engine oil won't freeze when the temperature drops, but that doesn't mean it's immune to the effects of cold weather.

Everything, even the smallest of things, can affect the performance of your engine. Whether topping off your fuel tank or driving on motor oil past its expiration date, you're slowly killing your car.

Motor oil is the lifeblood of a car's engine. It keeps all those little components lubricated to keep the engine running smoothly and quietly. Most car owners know how important it is to change motor ...