I’ve picked seven of the best Bluetooth-connected scanners that plug into a car’s OBD2 socket and put them against each other in a mega test of diagnostics. Here are the best Bluetooth OBD2 scanners.

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Crystal contamination can be eliminated by adding Rislone DEF Crystal Clean ® Diesel DEF & SCR Emissions System Cleaner (part #4784) to the vehicle’s DEF/AdBlue ® tank. Once the system is clean, use ...

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Car ownership and maintenance can be expensive, and there's nothing worse than firing up your vehicle and seeing the dreaded check engine light. I've been in that situation, and fortunately, this ...

In an age of endless subscription fees, it can be liberating to cut down on your monthly expenses. With a little work, a ...

Simple troubleshooting steps can help consumers diagnose why their diesel vehicles are losing power and what to do about it. Some issues are as easy to solve as installing a chemical additive. For ...

Part of the frustration of a check engine light is that it’s just so vague. It can signal anything from a looming powertrain failure to something as benign as a loose gas cap. The light will simply ...

A vehicle’s Check Engine light can turn any car ride into a harrowing experience. As soon as the check engine light illuminates, it’s hard not to hear the cha-ching sound of a ...

From statehouses to Capitol Hill, automakers and consumer advocates are battling over telematics access—and the future of ...