For example, diesel vehicles’ relative fuel economy advantage is generally greatest in highway driving. The most fuel-efficient route suggestion could be different based on the engine type. If you drive an EV or a plug-in hybrid that mostly runs on electricity, choose Electric.If you drive a hybrid or a plug-in hybrid that mostly runs using fuel, choose Hybrid.If you drive a vehicle with an internal combustion engine, choose Gas or Diesel.Search for your destination or tap it on the map.To choose your engine type, tap Engine type.To turn eco-friendly routing on or off, tap Prefer fuel-efficient routes.Tap your Profile picture or initial Settings Navigation settings.On your mobile device, open the Google Maps app.Important: Energy-efficient routes for electric vehicles (EVs) don’t include stops to charge.

However, your fuel or energy-efficiency estimates (based on your engine type) and a green leaf still show up to highlight the most fuel or energy efficient route among all alternates. When you turn this feature off, you always get the fastest route and Maps won’t factor in fuel or energy-efficiency for route recommendations. So besides showing you the fastest route, it will also show you the most efficient one, even if they aren't the same.

If this feature is turned on, Maps uses fuel or energy-efficiency on top of other factors like real-time traffic and road conditions to choose the best route for you. The more fuel or energy-efficient the route, the lower your car’s fuel/energy usage and CO2 emissions. The Google Maps app shows fuel or energy-efficiency estimates on some routes based on your vehicle’s engine type. Important: These features are only available in select countries.

Driving route planner google maps