We made it our mission to find out. The total cost of ownership is the only math that matters when buying a vehicle. That TCO includes everything from maintenance and depreciation to fuel costs-and ...

The lawsuit filed Wednesday in Los Angeles Superior Court charges four oil companies with failing to properly clean up at ...

Toyota's Prius Plug-In Hybrid addresses several problems drivers had with older Prius models. Surprisingly, the new Prius is a pleasure to drive, and even quicker than some popular gas car models.

Side gapping spark plugs can slightly increase horsepower and improve fuel efficiency. However, this DIY mod comes with a major downside for longevity.

Spark plugs are made from many different materials. Ruthenium spark plugs are able to offer some different benefits from ...

During my recent visit to the Chrysler dealer, they suggested that I replace all six of the spark plugs. The car has only 23,000 miles on it.

Counterfeit spark plugs are everywhere online, and they can ruin your engine fast. Here's how to check yours, avoid sketchy ...