Fuel efficiency

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.

We’ve gathered the three most fuel-efficient SUVs on sale for the 2025 model year in each of four powertrain classes: gas-only, hybrid, plug-in hybrid and full battery electric.

With so many hybrid vehicle choices on the market and more coming, these are the best 2025 hybrids for the money.

As is its recent spring custom, BMW has announced a smattering of minor updates across its lineup, including improved range for its all-electric i5 sedan.

Now that we’ve owned our 2024 Kia EV9 for a full year, we have charging and efficiency data from all four seasons.

We took the all-electric ID. Buzz and our EV9 on a cold-weather efficiency test to see how they performed in cold temperatures.

Now that winter temperatures have set in, we wondered what type of range, efficiency and charging times we’d see with our long-term Kia EV9 on a Midwest road trip in subfreezing temperatures.