FE4,000mi = FET[0.979 + 5.25 * 10-6(mi)]-1
Where:
FE4,000mi = Fuel economy data adjusted to 4,000-mile test point rounded to the nearest 0.1 mpg.
FET = Tested fuel economy value rounded to the nearest 0.1 mpg.
mi = System miles accumulated at the start of the test rounded to the nearest whole mile.
ADJ4,000mi = TEST[0.979 + 5.25 · 10-6· (mi)]
Where:
ADJ4,000mi = CREE or CO2 emission data adjusted to 4,000-mile test point.
TEST = Tested emissions value of CREE or CO2 in grams per mile.
mi = System miles accumulated at the start of the test rounded to the nearest whole mile.
40 C.F.R. §600.006