Fuel efficiency

A low purchase price is only the start to finding a truly affordable car. Their spectacular fuel economy helps these 10 cars and SUVs keep operating costs in check.

Discover the few remaining luxury cars that run on regular-octane gasoline, helping owners save hundreds of dollars a year on fuel costs.

There are 15 EVs on sale with driving ranges greater than 325 miles. Unfortunately, nearly all of them are on the pricer side of the segment.

Range is a primary consideration in shopping for a plug-in hybrid, so our list includes all 2026 PHEVs currently on sale with at least 450 miles of total (gas and electric) range.

Have the cooler (and sometimes frigid) temperatures since our August update done anything for our long-term 2025 Toyota 4Runner hybrid's efficiency?

A bad tank of gas can be caused by a variety of issues, and it can prevent a car’s engine from running as well as it should.

Range anxiety is one very strong motivating factor for electric car shoppers, so here are the electric cars with the longest range for 2025.

Engines are getting smaller and more powerful, but these high-strung engines may not be as reliable in the long run as older engines.

The Trump administration has proposed to lower the mandated average fuel-economy standards to 34.5 mpg by the 2031 model year.

We took the 2025 Subaru Forester Hybrid on a roughly 200-mile trip to see what kind of gas mileage it gets in real-world driving, and the results surprised us.