Where can I buy a fuel-efficient gasoline or diesel car?
For the reasons discussed above, fuel-efficient gasoline and diesel cars can be found in all vehicle classes, and are available from most automakers. All that is required is for you to check the fuel economy information – either on the EPA Fuel Economy Label, or search the WhatGreenCar database for the most fuel-efficient gasoline or fuel-efficient diesel cars available in the US. However, if you want to use some general ‘rules-of-thumb’ to help you choose a fuel-efficient car then remember that: the smaller the better (cars with less mass tend to have higher fuel economy); and engine technologies that are improving the fuel economy of conventional cars include Gasoline Direct Injection (GDI) (also known as Fuel Stratified Injection FSI) and gasoline-hybrids.
