US EPA 1998 Certification Label mpg Correlated with Consumers Union Fuel Economy Tests of 114 Vehicles

The US EPA 40CFR certification label fuel economy mpg for 114 model types of 1998 model year passenger vehicles marketed in the United States (US) by European. Pacific Rim, and American manufacturers, was correlated with fuel economy mpg test data obtained by the Consumers Union (CU) of US, Inc., a nonprofit, independent consumer information organization. The 114 model types range in curb mass (empty weight) from 916 kg (2015 lbs) to largest 2425 kg (5335 lbs). This correlation shows that the manufacturers US EPA label values overstate city mpg and understate the highway mpg significantly; in comparison to the CU city mpg and CU highway mpg test data, for the 114 model types of motor vehicles, reported by Consumers Union in 1998.