Sneaky ways to get better gas mileage

<br><br> Motorists looking to save on a liter of gas needn't drive across province lines in search of cheaper prices at the pump. The answer is right under the hood. That's because more frequent air filter changes can improve your vehicle's gas mileage by as much as 10%, the Car Care Council says. The filter keeps dirty particles from damaging the inside of your engine and helps it run more efficiently. <br><br>