Fuel Efficiency

The EPA agency, which had been clear about not mandating EVs, is also attempting to flip the language around Trump campaign talking points.

The EPA may be hobbled with such drastic cuts that it might not be able to respond to natural disasters, enforce regulation, or fine polluters.

The DOT now argues that increased fuel economy standards will make cars more expensive and that will make the vehicle fleet less safe.

The vast majority of Americans believe automakers should continue to improve fuel economy, according to the latest Consumer Reports' survey.

A challenge from oil and gas companies has fizzled, but there are plenty of other ways that a Trump administration could meddle with California regulators.

Reducing gas and diesel consumption is a virtual guarantee of cutting energy costs, but the savings depends on where you are and how you charge.

Petroleum companies are going after EPA standards that had already gone lighter on truck and SUV mpg versus what was originally proposed.

Will another wave of surging EV sales prove these standards irrelevant by then, or will automakers make as many gas trucks as they can?

The Ford Expedition and Chevy Tahoe might be popular picks for safety, but new tests show that these gas-guzzlers don't deliver that.

SUVs surpassed 50% of the market for the first time in "advanced economies" with around 20 million sales, according to the IEA.

Toyota has previously said that diesel engines are on the way out, but it appears that it sees them differently for some global markets—with a future pairing of diesel and hybrid tech.

Tougher emissions targets will likely lead to more EV sales, but environmental groups say they're again a step behind California.

With tweaks to the final rule, it projects 56% EV sales will be needed by 2032, along with at least 13% plug-in hybrids.

The Biden administration may "slow the pace at which auto manufacturers would need to comply" with tighter emissions rules.

Americans' continued shift toward larger vehicles and trucks boosted the average CO2 emissions per vehicle from 2017 to 2022, but rising sales of hybrids and EVs helped offset it.

The parent of Dodge, Jeep, and other brands claims the California Air Resources Board (CARB) "improperly adopted" a 2019 deal negotiated between the regulator and four automakers.

Despite plenty of claims otherwise, a group of Finish researchers found that block heaters didn't cut fuel consumption or emissions significantly in light-duty gas or diesel models.

Legacy automakers may end up paying "alarming" penalties for not meeting proposed federal fleet fuel economy standards, a lobbyist report claims.

EVs reduce global warming emissions, but that and the phasing-out of fossil fuels may be far less important to Republicans than Democrats.

The 2024 Toyota Land Cruiser has been redesigned with a turbocharged hybrid powertrain, a smaller footprint, and a base price in the $50,000 range.