Cummins Gearing Recommendations

1 Cummins Gearing Recommendations2015 On-Highway US and Canada EBU Marketing/Technical SalesMario Sanchez-LaraWhat matters? Vehicle Mission understanding the customer s equipment and duty cycle Gearing : Transmission and Axle Electronic Engine Features and ParametersVehicle Power ConsumptionEverything Matters: Aerodynamic Drag Rolling Resistance Vehicle Accessories and Mechanical Losses Grade Resistance Driveline Efficiency3 Application Guidelines Terminology Startability The maximum grade (%) on which a vehicle could accelerate from rest during an idle away (closed throttle) start Peak Torque Gradeability The maximum grade that a vehicle could ascend while operating at 100 % throttle in top gear at peak torque rpm Cruise Gradeability The maximum grade that a vehicle could ascend at a specified cruise speed while operating in top gear at 100 % throttleApplication Guidelines and Minimum Performance Recommendations * Certain applications may allow for cruise speed below minimum RSG Speed ( Smart Advantage)*mphGuidance for New Equipment Replacement Equipment Existing equipment should dictate Minimum Performance Requirements If tradeoffs are expected, provide customer with adequate explanation and obtain their buy-in Driveability(Driver Satisfaction)

2 Startability Torque Peak Gradeability Cruise Gradeability Total Cost of Ownership (Owner Satisfaction) Operational Efficiency and Fuel Economy MaintenanceCummins Gearing Criteria 2013 / GHG 2014 Certified Engines: Max Fuel Economy: Aim to maintain the engine operating in a low rpms range, producing adequate power to accomplish the job in an efficient manner, This favors fuel economy over some performance characteristics ( increase in shifting). Balance: Aim to operate the engine in a rpm range where horsepower is increasing while peak torque is readily available. This is a good compromise for customers seeking decent fuel economy with solid performance characteristics. Performance Aim to operate the engine in a rpm range where peak power is readily available. This favors productivity over operating costs. New Integrated Powertrain SmartAdvantageISX Family 1 400-475hp Gearing Once the optimal engine is determined, the right Gearing will enable the vehicle to meet the customer s needs and objectives.

3 Gearing Gauge / Criteria: Max Fuel Economy Balance Performance ISX15 450 hp, 1650 lb-ft torque ratingFuel Economy Impact NAAC: On average 1% improvement for line-haul applications Up to 2% improvement in regional hauling with stop and go routes Boosted configuration Suitable for applications requiring enhanced Air Compressor performanceNaturally Aspirated Air Compressor: Installation & Performance Preferred option for 2013 ISX15 400-450 hpengines Line-haul and Regional-haul applications Simple hardware update: Plumbing only change Unique option number Performance trade-off More time (vs. Boosted) to target operating pressure 40-60 seconds longer to achieve 145 psi (worst case scenario) Meets standard FMVSS-121 25 seconds to build pressure from 85 to 100 psiISX15 Family 1 400-475hp Gearing 1160-1240 RPM SmartAdvantage Integrated Powertrain VAM / ST2 1250-1425 RPM Extreme line haul / Regional haul -LTL Manual transmissions / lower gross weights 1500-1650 RPM Performance / Heavy haul 1600-1750 RPM Vocational / Off road SmartAdvantageLinehaul : Up to 80,000 lbsGCVW12 Insert Data ClassificationRPML inehaul: Up to 85,000 lbsGCVW 13 Insert Data Classification400-475 HP For ISX15 with less than 1550 lb-ftof torque: Maximum fuel economy is 1400-1500 Balance is 1500-1600 rpmRPMH eavy Haul: 86,000 and 140,000 lbsGCVW14 Insert Data Classification400-475 HPRPM These ratings provide value for customers who need power and torque Heavy loads Mountainous terrain and/or steep grades Tight route cycle times Use these ratings where power and torque are needed.

4 Do not focus on fuel economy Gearing Gearing Gauge / Criteria: Balance Performance Fuel EconomyISX15 Family 2 and 3 455-600hp Gearing ISX15 525 hp, 1850 lb-ft torque ratingISX15 Family 2 and 3 Gearing 1350-1400 RPM Owner Operator wanting higher average road speeds 1400 to 1550 RPM Premium fleets / Higher gross weights 1550-1800 RPM Heavy Haul / Off road or Vocational Do not focus on fuel economy Gearing , Do not Downspeed 17 Insert Data ClassificationLinehaul: Up to 110,000 lbsGCVW 485-600 HPRPM18 Insert Data ClassificationVocationalHeavy Haul:86,000 and 140,000 lbsGCVW485-600 HPRPMISX12 310 425hp Gearing 1370 RPM for Linehaul fleets High % of interstate operation(85% to 95%) Want maximum fuel economy Lighter loads(62K to 70K) 1400 to 1450 RPM for Regional / LTL fleets Supports two lane / Rural operation Good mix of fuel economy and performance 1500 to 1900 RPM for Vocational / Heavy Haul Soft surface operation Performance for high GVWL inehaul: Up to 85,000 lbsGCVW 20 Insert Data Classification310-425 HPRPMV ocational Ratings21 Insert Data Classification320-450 HPRPMA pplications Two sets of Gearing guidelines for the ISL9 are based on the available peak torque Regional Haul Suburban Delivery Vocational Pick up and Delivery Dump Truck Refuse Truck Concrete Mixer Up to 66,000 lbsVocational and Linehaul: Up to 66,000 lbsGCVW23 Insert Data Classification330-380 HPRPML inehaul: Up to 66,000 lbsGCVW24 Insert Data Classification260-300 HPRPMA pplications Two sets of Gearing guidelines in Linehaulapplications are based on available peak torque and GCW Vocational Applications Utility Step Vans Pick up and Delivery Regional Haul Suburban Delivery Beverage Distribution Up to 50,000 lbsPickup and Delivery: Up to 33,000 lbsGCVW26 Insert Data Classification200-325 HPRPM27 Insert Data ClassificationPickup and Delivery.

5 Up to 50,000 lbsGCVW200-325 HPRPMV ocational Ratings28 Insert Data Classification200-325 HPRPMSpec ing Natural Gas Powertrains29 Natural Gas30 Insert Data Classification Heavy Duty Engine Up to 80,000 LbsGCVW Great for mixer, dump truck, refuse, regional-haul and LTL applications 31 Applications 400 HP Gearing32 UltraShiftPLUS Eaton approved package For LinehaulActive Shifting (LAS) and Multipurpose High Performance (MHP) transmission models Linehauland Regional Haul only33 Linehaul: Up to 80,000 lbsGCVW34320-400 HPRPM35 Insert Data ClassificationVocational Ratings: Up to 80,000 lbsGCVW320-350 HPRPMA pplications MidRangeEngine Pickup and Delivery Truck Vocational Up to *66,000 lbsGCVW Less than 60,000 milesper year*Refuse Packer ,Crane / Cherry Pickers, Concrete Ready Mixer allow up to 80,000 GVW320 HP Gearing3738 Insert Data ClassificationLinehaul : Up to 66,000 lbsGCVW250-300 HPRPM39 Insert Data ClassificationVocational Ratings : Up to 66,000 lbsGCVW250-320 HPRPM