Simulation
The laboratories the EPA custom to corroboration vehicle MPG are modified to accurately simulate the driving empiricism as accurately as potential. The vehicle's handle wheels are placed on machines called dynamometers to recorder distance. The resistence of the dynamometer can be modified To admit for system or wind conditions. A specially trained Chauffeur then operates the vehicle washed-up various tests for conurbation driving and highway driving. The tests exercise averages in clashing temperatures and operating modes (cold starts, warm starts, and air conditioning usage) to supply an accurate average for the vehicle's MPG rating.
Data Analysis
The EPA runs numerous tests and takes the average of the MPG of all test results. When the data is compiled it becomes the official MPG figure on a vehicle's factory window sticker.A specialized hose is connected to the vehicle's exhaust while the tests are being performed. The hose is connected to a machine that accurately collects data about the amount of fuel used during the test. The testing procedure of monitoring exhaust data is much more accurate than using a typical fuel gauge.
