*CPL1858 Non Certified **CPL1937 CARB Certified

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1 CUMMINS ENGINE COMPANY, INC Columbus, Indiana ENGINE PERFORMANCE CURVE Basic Engine Model: -240G Engine Family: CPL Code: D * / 1937** Curve Number: FR-2304 Date: 12Jul94 1 Displacement: 610 in. 3 (10.0 litre) Aspiration: Turbocharged & Aftercooled Bore: 4.92 in. (125 mm) BHP RPM Stroke: 5.35 in. (136 mm) No. of Cylinders: 6 Advertised BHP 240 (179) 2100 Emission Control:Catalytic Convertor Fuel System: Regulator & Mixer Governed Speed 2100 All data are based on the engine operating with fuel system, water pump, lubricating oil pump, air compressor (unloaded), 11 in. H 2 O (279 mm) inlet air restriction and 2.4 in. Hg (61 mm) exhaust restriction; not included are alternator, fan, optional equipment and driven components. FOR URBAN BUS ONLY *CPL1858 Non Certified **CPL1937 CARB Certified Maximum Full Load Governed Speed = 2100 RPM Maximum No Load Governed Speed = 2350 RPM Brake Horsepower = 2350 RPM TORQUE RPM lb.-ft. N m (1017) (1010) (997) (970) (915) (861) (814) POWER OUTPUT RPM BHP kw (128) (137) (146) (152) (163) (172) (179) FUEL CONSUMPTION RPM lb/bhp-hr g/kw hr (212) (215) (215) (217) (221) (226) (236) Curves shown above represent gross engine performance capabilities obtained and corrected in accordance with Standard Performance Conditions Listed in DS The engine may be operated in a transient mode up to 8,500 ft. (2 590 m) altitude and 100 F (38 C). However, when ambient and/ or installed conditions vary from the Standard Conditions, performance characteristics can be expected to vary according to the guidelines as in Power Correction Factors in DS Engines should not be operated continuously at an altitude of more than 1,000 ft. (327m) above or below the altitude at which the Air/Fuel mixer was set. Engines are production set at 500 ft. (152 m) above sea level. If the final destination is above 1,500 ft. (457m) above sea level, the mixer will require resetting. Engines may be run for short periods up to 8,500 ft. (2 590 m) without adjustment. TECHNICAL DATA DEPT RATED POWER and RATED TORQUE CERTIFIED WITH + 5% CHIEF ENGINEER

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3 Cummins Engine Company, Inc. Engine Data Sheet NATURAL GAS FUELED - SPARK IGNITION. 3 Engine Model: -240G CPL Code: 1858 / 1937 Data Sheet: DS Configuration Number: D433002BX02 Certification: Curve No. : FR-2304 Advertised Power - BHP 2100 RPM CPL1858 Non Certified Date: 12Jul94 - (kw): 2100 RPM CPL1937 CARB Certified Ref. Info.: Aftercooled, Installation Drawing: Catalytic Convertor, Governed Speed: 2100 Auto Transmission Only. General Engine Data Type...4 Cycle; In-Line; Spark Ignition Aspiration...Turbocharged & Aftercooled Bore & Stroke - in. (mm) (125) x 5.35 (136) Displacement - in. 3 (litre) (10) Compression Ratio : 1 Firing Order Dry Weight - lb (kg) (894) Wet Weight - lb (kg) (947) C.G. Distance From Front Face of Block - in. (mm) (450) C.G. Distance Above Crank Centerline - in. (mm) (191) Moment of Inertia About the Roll Axis - lb-in. sec 2 (kg m 2 ) (50) Maximum Bending RFOB - lb-ft (N m) (1350) Maximum Bending Bolt Pad for Front Support - lb-ft (N m) (678) Air Induction System Maximum Temperature Rise Between Ambient Air and Engine Air Inlet [Ambient Above 32 F (0 C)] - F ( C) (17) Maximum Inlet Restriction w/clean Filter - in. H 2 O (mm H 2 O)... 8 (203) Maximum Inlet Restriction w/dirty Filter - in. H 2 O (mm H 2 O) (381) Exhaust System Maximum Back Pressure Imposed by Piping and Silencer - in. Hg (mm Hg)... 3 (76) Maximum Back Pressure Imposed by Piping and Silencer / Converter - in. H 2 O (mm H 2 O) (1016) Maximum Bending Moment to the Turbo Flange - lb-ft (N m) (27) Lubrication System Oil Idle - (Minimum) - PSI (kpa) (69) Oil Pressure 2000 RPM - PSI (kpa) ( ) Total Pump Oil 1800 RPM (Nominal) - U.S. GPM (litre/min.) (132) Oil Capacity of Pan (High - Low) - U.S. Gal. (litre) (34-26) Flow required for Bypass 2350 RPM (High - Low) - Gal./min. (litre/min.) (6-11) Total System Capacity - U.S. Gal. (litre) [Combo Filter] (39) Maximum Lube Oil Flow to all Accessories - U.S. GPM (litre/min.)... 2 (8) Angularity of Oil Pan - (Front or Rear Down) - Degrees... 20* Angularity of Oil Pan - (Side Down) - Degrees... 20* Angularity of Oil Pan - (All Directions) - Degrees... 20* (*Angularity Limited by Water - Cooled Turbocharger) Fuel Supply Secondary Regulator: Inlet Fuel Pressure at Rated Conditions - Max / Min. PSI (kpa) ( ) Inlet Fuel Temperature (Difference from Engine Air Inlet Temperature) - Max / Min. F ( C) / -10 (+39 / -6) Wobbe Index (Real, Higher Heating Value) - Max / Min Fuel Supply Capability Requirement at 80 PSI (552 kpa) - Min. lb/hr (kg/hr) ] (50)

4 Starting and Electrical System 4 Governor Supply Voltage Required (Volts) Minimum Recom mended Battery Capacity - Cold Soak at 0 F (-18 C) or Above 12V 24 V Engine Only (De-Clutched Load) - Cold Cranking Amperes - CCA Engine Only (De-Clutched Load) - Reserve Capacity - Minutes Maximum Resistance of Starting Circuit - Ohms Minimum Ambient Temperature for Unaided Cold Start - F ( C)...10 (-12) Minimum Cranking Speed for Unaided Cold Start - RPM Maximum Allowable Ground Resistance - Milliohms: Engine Block to Negative Battery...40 Ground Termination at Dash to Negative Battery...50 Ground Termination at Dash to Engine Block...90 Vehicle Frame Rail to Negative Battery...40 Electronic Sub-System Throttle Sensor Specification Documents (Cummins Engine Company Standard Numbers) Throttle Position Sensor Performance Standard Environmental Specification for Electrical and Electronic Items Idle Validation Switch Performance Standard Governor Wiring Harness (Governor Control Module) Maximum Current Power Connector - Amps...13 Maximum / Minimum Power Connector RPM to 2700 RPM - Volts...32 / 8 Minimum Governor Control Module - Cranking (all AMBIENTS) - Volts...8 Maximum Power Interruption in Key Switch Circuit - Milliseconds...80 ECM Connector Wire Diameter (from Battery to ECM to Engine: 70 ft. Length Maximum)...16 AWG GXL (2.7 mm OD) Ignition Wiring Harness Maximum Current Power Connector - Amps...10 Maximum / Minimum Power Connector RPM to 2700 RPM - Volts...32 / 8 Minimum Ignition Control Module - Cranking (all AMBIENTS) - Volts...8 Maximum Total Circuit Resistance, Power Connection to Batteries - Milliohms...40 Maximum Power Interruption in Key Switch Circuit - Milliseconds...30 (12 Volt) Maximum Power Interruption in Key Switch Circuit - Milliseconds...80 (24 Volt) Ignition Control Module Connector Wire Diameter...16 AWG GXL Data Sheet : DS

5 Cooling System 5 Coolant Capacity - Engine Only - U.S. Quart (litre) (11.3) Standard Modulating Thermostat - (Range) - F ( C) (82-93) Maximum Coolant Pressure - [Exclusive of Pressure Cap - Closed Thermostat at the Maximum No Load Governed Speed] - PSI (kpa) (276) Maximum Coolant Temperature - Engine Out - F ( C) (100) Minimum Recommended Coolant Temperature - F ( C) (70) Minimum Cooling Nominal Fuel Rate [Level II]) 50/50 E.G. Coolant: Engine Out Coolant to 2100 RPM - F ( C) (41) Engine Out Coolant to 1300 RPM - F ( C) (46) Minimum Fill Rate (Without Low Level Alarm) - U.S. GPM (litre/min)... 5 (19) Minimum Coolant Expansion Space - % of System Capacity... 6 Minimum Drawdown - % Greater than the Volume Not Filled at Initial Fill... 1 Maximum Deaeration Time - Minutes Minimum Pressure Cap - PSI (kpa)... 7 (50) Coolant Alarm Activation Temperature - F ( C) (104) Fan-On Coolant Temperature - F ( C) (90) Shutter Opening Temperature - Coolant F ( C)... N/A Winter Fronts... Not Recommended General Performance Data All data is based on the engine operating with a fuel system, water pump, lubricating oil pump, and air compressor [unloaded], with a 11 in. H 2 O (279 mm H 2 O) inlet air restriction and a 2.4 in. Hg (61 mm Hg) exhaust restriction; not included are alternator, fan, optional equipment and driven components. Standard Conditions are: in. Hg (99.14 kpa) Dry Barometric Pressure (at 500 ft. (152mm) altitude), 77 F (25 C) Inlet Air Temperature, and Natural Gas having Gas Temperature 104 F (40 C) with Gas Wobbe I ndex based on Higher Heating Value of 1338 and gas having Lower Heating Value 950 BTU/Cu.ft. (measured by ASTM D-3588). The Engine may be operated in a Transient mode up to 8500 ft. (2 780 m) Altitude and 100 F (38 C). However, when ambient and/or installed conditions vary from the Standard Conditions, performance characteristics can be expected to vary according to guidelines which determines Power Corrections. Idle Speed - RPM... Range: Maximum No Load Governed Speed - RPM Maximum Overspeed Capability (15 Second Maximum) - RPM Torque Available at Clutch Engagement - lb-ft (N m)... TBD** Thrust Bearing Load Limit - Maximum Intermittent - lb (N) (6000) Thrust Bearing Load Limit - Maximum Continuous - lb (N) (3000) Maximum Power from Front Power Take-Off in a Straight Torque Drive - HP (kw) (187) **Product available with Automatic Transmissions only. * Radiator Coolant Flow is Approximately 5% Less With a Continuous Deaerating System on Water Jacket / Aftercooled Engines. Coolant: 50/50 - Ethylene Glycol/Water By Volume. Values are within +/- 5%. Maximum Rating Performance Data Full Power Peak Torque Output - BHP (kw) (179) 171 (128) Engine Speed - RPM Torque - lb-ft (N m) (814) 750 (1017) Inlet Air Flow - CFM (litre/sec) (268) 342 (161) Inlet Air Flow - lb / min. (Kg/min.) (18.2) 24.0 (10.9) Exhaust Gas Flow - CFM (litre/sec) (750) 981 (463) Exhaust Gas Temperature - F ( C) (560) 1080 (582) Heat Rejection - BTU/min. (kw/min) (113) 4800 (84) Radiator Coolant Flow - U.S. GPM (litre/min.)* (394) 59 (223) Nominal Fuel Consumption (Natural Gas)- lb/hr (kg/h)...90 (40.9) 59 (26.8) Brake Mean Effective Pressure - PSI (kpa) (1020) 185 (1277) Friction Horsepower - HP (kw)...45 (33) 15 (11) Piston Speed - ft/min. (m/sec) (9.5) 1070 (5.4) Performance Curve Number...FR-2304 Data Sheet : DS

6 POWER CORRECTION 6 The power is produced by the -240G is very sensitive to barometric pressure, intake air temperature and exhaust restriction, and fuel composition. Observed performance needs to be adjusted to represent the performance that would be observed if the engine were being operated at Standard Performance Conditions. The following factors should be used to correct any observed performance reported. Standard Performance Condition Engine Performance will be achieved under the following Standard conditions: Parameter Conditions a. Dry Barometer in. Hg (99.14 kpa) b. Air Intake Temperature...77 F (25 C) c. Gas Temperature F (40 C) d. Water Outlet Temperature F e. Gas Wobbe Index (based on higher heating value) f. Gas Sulfur Content...Less than 10 PPM g. Air Intake Restriction...8 in. H 2 O h. Exhaust Restriction in. Hg Performance Correction Factors When ambient and/or installed conditions vary from the Standard Performance Conditions listed above, the Perfomance Parameters can be expected to change approximately as follows: Parameter For Every Change Of: Correct Power By: Dry Barometer...+ / in. Hg + / % Air Inlet Temperature...+ / F + / % Relative Gas Temperature...+ / F + / % Air Intake Restriction...+ / in. H 2 O + / % Exhaust Restriction...+ / in. Hg + / % Wobbe Index...+ / - 1% + / % NOTE: Correction factors above are accumulative. Data Sheet : DS

TECHNICAL DATA DEPT. CERTIFIED WITHIN 5% CHIEF ENGINEER

TECHNICAL DATA DEPT. CERTIFIED WITHIN 5% CHIEF ENGINEER CUMMINS ENGINE COMPANY, INC Columbus, Indiana 47202-3005 ENGINE PERFORMANCE CURVE Basic Engine Model: Curve Number: -370E FR-1811 Engine Family: CPL Code: Date: D09 1807 12Aug93 55 Displacement: 855 in.