Leading Fuel Economy. ISX15 400-475 hp (298-354 kW). 2013 ISX15 Is The Fuel Economy Leader. n Integrated Powertrain – Market-leading fuel economy – omparable to or better fuel economy than any C engine in the market n 5L provides architecture flexibility, with the 1 highest compression ratio in the industry n 15L enables broader power/torque curves n Superior driveability at low rpm n Better match for line-haul duty cycles n ISX15 sweet spot is 1000-1300 rpm n Gearing, 65 mph: n 2L/13L can produce comparable power, but is 1 not as fuel efficient at a lower rpm Fuel-Economy Progress Continuous Improvement Delivering Up To 10% Better MPG Than 2010 ISX15. SmartAdvantage Powertrain Optimized use of SCR and naturally aspirated air compressor Reduced parasitic losses and enhanced low-end torque for downspeeding 3.5% Combustion and system optimization Baseline is *Baseline2010 fuel economy. is 2010 Fuel Economy Note: Fuel economy is influenced by many factors. Actual mpg gains may vary.

Integrated Powertrain: Competitive Summary Vehicles Built in this chart where the ISX15 Eaton® UltraShift® PLUS is the baseline, aerodynamically As depicted in 2013 Calendar Year Chassis A tractorswith an aerodynamically comparable package Powertrain have demonstrated efficient and B powered by the Cummins and Eaton SmartAdvantage better fuel economy than other 2013 integrated powertrain packages. 5 Percent Better Than Baseline 4 3 2 Neutral Coast Base B:15L B:15L SmartAdvantage B: 15L Line-Haul Regional-Haul Line-Haul Line-Haul -1 Percent Worse Than Baseline Direct Drive Neutral Coast Base Competitor...