Test Description: An on the road fuel economy simulation of long-haul operation based on an industry standard test method
Test Objective: Evaluate fuel economy benefits derived from using the Derive Efficiency solution under controlled conditions on a 2008 Cummins DPF ISX engine
Test Program: The SAE J1321 procedure was conducted utilizing fully serviced trucks.
One control truck and one test truck operate simultaneously.
A single complete SAE J1321 Type II fuel economy test consists of baseline segment and a test segment.
A valid segment consists of three test laps having a spread in test/control fuel consumption ratios not greater than two percent of the highest test/control fuel consumption ration (T/C ratio)
The test route or lap was 40 miles in accordance to SAE J1321 and was representative of long-haul operations.
Vehicle: The control and test vehicles were Class-8 diesel trucks.
The Control Vehicle was an International 9400 with a Cummins ISX engine, while the Test Vehicle was an International Pro Star with a Cummins ISX engine.
Both the control and the test vehicles were pulling identical loads of a gross vehicle weight (GVW) of 80,000 lbs during the test.
Test Results: The Derive Efficiency product delivered an average fuel economy improvement of 7.07% over the control vehicle.