Luxury auto manufacturers are constantly looking to push the envelope of power and efficiency, and Audi has stood out from the pack with the TFSI system installed on its turbocharged engines. Audi ...

Port fuel injection (PFI) was a major milestone in the early '80s. The integration of PFI rapidly changed the way fuel was delivered by increasing fuel economy and improving engine performance. Even ...

Flex fuel is expected to cut tailpipe emissions by up to 70 to 75 percent compared to regular petrol.

Turbocharger use is more prolific than ever, and understanding how one works explains why it’s such a popular choice. To understand the benefit of a turbo, we need a refresher on the basics of the ...