This study aimed to evaluate, in an accelerated manner, several aerodynamic drag reduction measures applicable to Class 8 tractor-trailer combinations. The tests were conducted according to SAE J1321 Joint TMC/SAE Fuel Consumption Test Procedure - Type II (SAE International 1986). The test results show up to 5% improvement in fuel consumption for the test vehicles equipped with boat tail devices, and up to 7% for the vehicles equipped with trailer skirts.