Jump to main content or area navigation.

Climate Change Contacts

Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Fuel Efficient Vehicles and Alternative Fuels Smart Choice Guide

How to Choose a Vehicle

Smart Choice Fact

The difference between a car that gets 20 MPG and one that gets 30 MPG amounts to $645 per year (assuming 15,000 miles of driving annually and a fuel cost of $2.58). That's $3,225 extra in fuel costs over five years!

green vehicle

Green Vehicle Guide assists users in choosing the cleanest and most fuel-efficient vehicle that meets your needs. Green vehicles have high fuel economy, low greenhouse gas emissions, and low criteria pollution emissions. These pollutants cause smog and soot – include oxides of nitrogen, volatile organic compounds (VOCs), carbon monoxide, and particulate matter. Green vehicles can run on low-carbon fuels, such as grid-supplied electricity and sustainable biofuels. Examples include high efficiency hybrids, plug-in hybrids, battery electric vehicles, flex-fueled vehicles that actually run on sustainable biofuels, flex-fuel plug-in hybrids.

In partnership with the West Coast Collaborative (WCC) the Advanced and Alternative Vehicle and Fuel Technologies: User Guide for Medium- and Heavy-Duty Truck Fleets was developed to address needs expressed by industry consumers regarding the availability and performance of vehicle technologies and fuels for reducing diesel emissions and improving fuel economy. The guide includes descriptions of available vehicle and fuel technologies, benefits relative to conventional diesel internal combustion engines (ICEs), lessons learned from real world applications, funding and financial incentives, and tools to help owners, operators, and managers pick the right technology for their business or fleet.

On-Road Vehicles and Engines has links to information about highway vehicles (cars and light trucks, heavy trucks, buses, engines, and motorcycles) including fuel economy, emission standards and regulations, emission recall programs, new vehicle certification and in-use vehicle compliance, inspection and maintenance programs, diesel retrofit programs, evaluating the benefits of inventions designed to reduce emissions, and importing vehicles to the United States.

Vehicles listed on the DOE and EPA sponsored Fuel Economy site have gas mileage estimates and more information for 1984-2010 model year cars. Selecting which vehicle to purchase is the most important fuel economy decision you'll make.

Please visit the Additional Resources page for more tools, calculators and models that can assist you in choosing your vehicle.

Region 9 NewsroomRegion 9 Programs Grants & FundingUS-Mexico Border Media CenterCareers About Region 9A-Z Index

Jump to main content.