Setting up the tool is easy: It needs a single AAA battery and it operates with ... tester pen then inserted it into the HHR's brake fluid reservoir. It came back at a safe 1 percent or less.

Checking and topping off your windshield washer fluid reservoir is a crucial part of a safe driving experience, and should be considered regular maintenance like checking your oil or tire pressure.

High temperatures accelerate battery fluid evaporation and internal corrosion, particularly in units already weakened by the demands of winter driving. To help travelers hit the road safely ...

Of all the systems in your car, perhaps the most important to your safety are the brakes. Modern vehicles use hydraulic fluid to transmit pressure from a master cylinder to individual cylinders at ...