The Efficiency Illusion and Real World Mechanics So, do twin turbos help or hurt your gas mileage? It's complicated, honey.

Understanding what twin turbos actually do, how they are configured, and where their efficiency gains are won or lost is ...

International is marching ahead with updates to its S13 Integrated Powertrain to meet federal emissions regulations expected ...

How can you get better fuel economy from your diesel? Watch how you drive, keep up with maintenance, and don't skimp on the ...

This is why, in this list, we will be ranking what we have determined are the top five most fuel efficient pure-gas cars, as ...

Diesel engines are sometimes assumed to have poor fuel efficiency, possibly due to their association with heavy equipment, big ships, long-haul trucks, and other gas-guzzling machinery. But contrary ...

Honda’s K-series engines have been around for 25 years, and have earned a reputation for durability, versatility, and tuning ...

The volatility of gas prices in recent years means shopping for a fuel-efficient vehicle now can lead to significant savings at the pump down the road. Of course, if you want to avoid the pump ...

Nothing kills a long joy ride like watching your fuel gauge drop like a rock. This has been an age-old problem for many riders who want a bike that's both stylish and fuel-efficient. In the past, they ...