Question: My question is about radiator overflow tanks. I’ve always had cars and trucks that had an overflow tank that you would keep full to the cold or hot mark. Checking over my daughter’s car, she ...

You can also try shining a high-intensity flashlight through the side of the reservoir, or even down inside it. That can illuminate the coolant, and makes it easier to see its level. Or shake the car ...

It all started so innocently: You're puttering around the garage on a crisp fall morning — checking for harmful low tire pressure and things like that — when you notice that your car's coolant tank is ...