Watch a rally car go blasting full speed down a gravel road. Now think what that would do to the wheels on your car.
It's all about the Auto Union.
Four new classes and plenty of brand-new cars promise to make the 2017 IMSA WeatherTech SportsCar Championship exciting.
It takes longer, wastes fuel, and actually increases the wear and tear on your engine.
Do you live in America? Then you probably say it wrong.
Yes, motors need oil to run. But how does it actually work?