This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Hwfetdds. en The Highway Fuel Economy Driving Schedule HWFET is chassis dynamometer driving schedule defined in the US Code of Federal Regulations CFR part App and represents highway driving conditions under mph The cycle lasts seconds covering mi km with an average speed of mph km See also US CFR App epa gov htm dieselnet