Over time and miles, your car might start to slow down. It might not accelerate as quickly as it once did; the engine ...

Many new high-performance and turbo engines require at least 91 octane, ... Buy the right fuel injector cleaner for your engineAll fuel injector cleaners are not created equally.

The gasoline engine is a new 204 hp turbocharged 1.8-liter unit with 229 lb-ft of torque. Mercedes-Benz is now offering three new direct injected engines in its C-Class BlueEfficiency models.

Q: I have a 2009 VW with gasoline direct inject and a 2.0-liter turbo engine. It recently needed the intake valves cleaned (a very costly job) after just 54,000 miles. I understand many manufacture… ...

However, engine knocking doesn't mean you should switch to premium gasoline. Most of the time, it's not a big deal, and a little knocking won't harm your engine.

The petrol engines – a 1.6 16v VTi 120hp and a 1.6 16v THP 150hp – are the result of Citroën's work with BMW and offer drivers 35 mpg (U.S., combined cycle) and 159g/km of CO2 with the VTi or ...