Fuel efficiency

If you’re in the market for a new pickup truck, you may be wondering if you should get a gas engine or a diesel engine since there are significant differences between the two.

Shoppers should consider their needs before buying either an EV or PHEV, as well as charging limitations, how their climate will affect range, longer charging times, and potential local tax incentives or subsidies.

The all-new 2025 4Runner hybrid is EPA-rated at 23 mpg combined, but how has ours performed after our first 5,000 miles of driving?

While demand for electric vehicles fluctuates, hybrids are having a moment, and one of the best when it comes to meeting its fuel-economy mission is the Toyota Prius.

With so many fuel-efficient choices, from gas-only models to hybrids and plug-in hybrids, which ones rate the highest for 2025 based on the EPA cycle?

EVs are better for the environment than an average new gasoline vehicle no matter where you live in the U.S., according to a greenhouse gas emissions calculator created by the EPA.

EGR stands for exhaust gas recirculation, and the EGR valve is part of a system that recirculates exhaust gas back into the engine’s intake manifold for a return trip to the cylinders it just left.

Here’s a look at the best pickup trucks for getting more done with less fuel — be it gasoline, diesel or electricity — sorted by truck size.

When someone asks if a car “gets good gas mileage,” one logical response is: Compared to what?

The following list highlights the 10 most efficient electric cars for 2025. Where more than one version of a given model qualifies, we selected the most efficient version.