Fuel efficiency

We take a deeper look into how the new 2026 Jeep Cherokee stacks up on paper versus the competition and why it probably isn’t more efficient than it is.

The 2026 Jeep Grand Cherokee’s new 2.0-liter four-cylinder engine may not appear to be a dramatic improvement at first glance. Appreciating it requires digging a little deeper into the specs.

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.

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.