Cummins Spark Ignited Engines

ISL9-G

ISX12-G

April 2013

What is Natural Gas?

Benefits

Models ISL9-G, ISX12-G

Maintenance

•Oil

•Fuel

Payback

Summary

AGENDA

What is Natural Gas ? Formed from slowly decomposing buried remains of

plant and ocean life from over 200M years ago.

Concentrated in layers of rock, brought to the surface

via well heads.

Simple Chemical make-up of ONE carbon and four

hydrogen atoms – that’s what makes it burn so clean.

CH4, Natural Gas, currently

meets 1/4th the energy needs,

and will grow by 50% over

the next 20-years.

Since the 1960s, CNG has

become a vehicle fuel

alternative to oil-based

gasoline and diesel fuel.

Natural Gas—A Safer Fuel !Lighter than air, rises and doesn't

accumulate in low places

Ignites at temperatures of approx. 1100°F

Rich mixture burns off slowly

Non-toxic

Odorless: a detection fragrance is added

Evaporates quickly

Environmental Friendly if spilled

DOES NOT FREEZE !

Benefits• Natural Gas costs 30-50% less

than diesel

• Return on investment and fuel savings

Economics

• Domestic production and supply

• Reduces crude oil importsEnergy Policy

• Reduces greenhouse gas emissions

• Lower engine noise

• Simple aftertreatment

Environment

Stoichiometric stoi·chi·o·met·ric [stoi-kee-uh-me-trik]

–adjectiveChemistry.

1. of or pertaining to stoichiometry.

2. pertaining to or involving substances that are in the exact proportions required for a given reaction.

Stoichiometric is the ideal combustion process during which a fuel is burned completely. A complete combustion is a process which burns all the carbon (C) to (CO2), all hydrogen (H) to (H2O) and all sulfur (S) to (SO2).

The stoichiometric ratio is the perfect ideal fuel-air ratio where the chemical mixing proportion is correct. When burned all fuel and air is consumed without any excess left over.

ISLG Integrated Fuel Housing

7

EG

R

EG

R

Fuel Flow Valve

3933841

Gas Mass Flow

Sensor 3929159

Fuel Outlet

Press Sensor

4921479

Fuel Inlet

Press

Sensor

4921495

NG Fuel

flow path

Fuel Reg

3970615

FSOV

3931710

Throttle Act.

4934537

Maintenance-Free Aftertreatment Three-Way Catalyst, Passive Device

Easy Install packaged as a muffler - vertical or horizontal mount

Weighs approx. 100 pounds

Minimizes vehicle impact and Maintenance

No DPF/regeneration NOR SCR/DEF Fluid required.

ISL9-G Technical Specifications

Introducing the ISX12-G

Available for Order Q1 2013

Maintenance Intervals – Same as Diesel

Eg: Truck application Hours Miles Kilometers Months

Check CAC cooler, piping

and Air Cleaner250 7500 12,000 3

Oil & Filter* 500 15,000 24,000 6

Coolant Filter** None¹ None¹ None¹ None¹

Spin-on Fuel Filter 1,000 30,000 48,000 12

Spark Plugs 1,500 45,000 72,000 18

Standard Coolant 2,000 60,000 96,000 24

Overhead Adjustment*** 2,000 60,000 96,000 24

Air Cleaner/Element Follow vehicle manufacturers published recommendations

Default interval is the hours stated. Interval is whichever comes first – hours, miles or time.

Refer to Owners Manual for complete details on Maintenance Intervals.

¹ If engine is equipped with an optional coolant filter, it will need to be replaced at the same intervals as the oil filter. Regardless if

the engine is or is not equipped with a coolant filter, SCA/DCA additive levels must be checked according to the interval listed in

the Owners Manual.

*Assuming normal duty cycle/based on 30 mph average speed.

**Do not change if SCA above 3

***Initial Overhead Adjustment at 1,000 hours

Engine Maintenance Specific to Natural Gas

Spark Plug Replace – 1,500 hours•Inspect & Test Ignition Coil – 1,500 hours

Initial Overhead Valve Set – 1,000 hours•Every Overhead Valve Set – 2,000 hours

Drain Fuel/Water Separator DAILY

Use only natural gas engine oil • (CES 200074)

Use 15W-40 Natural Gas Engine Oil

Cummins Westport natural gas

engines require SAE 15W-40

natural gas engine oil that is

available from major oil suppliers

– Careful attention must be paid to

engine oil specifications

– CES 200074 Low Ash

– Natural gas engine oil has different

properties than diesel engine oil

– Higher ash oils (>0.6 percent

sulfated ash) can cause valve and/or

piston damage and lead to excessive

oil consumption and degradation of

the catalyst

14

Do not use diesel engine oil in a natural gas engine.

If diesel engine oil is used, valve torching, piston

scuffing, and reduction in spark plug life will occur.

Maintenance Tools

3375044 Torque wrench

3375049 Oil filter wrench

3376592 Torque wrench (valve adjustment)

3376807 Engine coolant and fuel filter wrench

3822524 Belt tension gauge, click type (v-belts and v-ribbed with 4 or 5 ribs)

3822525 Belt tension gauge, click type (v-ribbed with 6 to 12 ribs)

ST-1138 Belt tension gauge (v-ribbed belts, 6 to 9 ribs)

3163196 Torque wrench adapter

ST-1273 Pressure gauge 0 to 1900 Hg [0 to 75 in Hg]

3824510 Electronic contact cleaner

3163099 In-line data link adapter kit

QuickServe™ Online

Cummins® INSITE™ electronic service tool software

Maintenance Tools continued

3164486 Tester, Ignition

3825137 Kit, NG engine tool, includes:

– 3376589 Female Compucheck™ quick connect

– 3823983 Compression gauge/adapter set

– 3823984 Combustible gas detector

– 3824876 Plug socket

– 3824645 Pressure vacuum module

– 3824648 Automotive meter (Flukemeter)

17

OEM Supplied Fuel System Components(CNG)

Mounted on the vehicle chassis.

Regulates storage pressure down to engine specification

pressure (70-150 psi).

Note drain on Fuel Filter has a drain requirement.

•Must be drained if there is 1 oz of liquid.

•Make sure to have mounted in accessible location.

Incorporate Engine Heaters: Oil Pan heaters & Block heaters

18

Fuel Natural Gas fuel for the ISL G can be stored on the vehicle in either

liquid (LNG) or compressed (CNG) form.

Natural gas fuel must meet ISL G fuel specs per AEB 79.05

Minimum Methane Number (MN) is 75

Cummins Westport approves the use of up to 100% biomethanethat meets Cummins published natural gas fuel specifications

ISL G requires fuel to be regulated to max 150 psi, min 70 psi

or

19

CNG Range

Natural gas engine mpg lower than diesel

– Lower compression

– Throttled inlet versus fuel injected

Example:

– Diesel fuel economy 5 mpg

– Natural gas fuel economy 4.5 mpg

Diesel Fuel Storage 60 g = range 300 miles

CNG Fuel Storage 60 dge = range 270 miles

Important to look at cost per mile as natural gas fuel cost is less than diesel.

Specing for The Right Applications

ISL-G

– Medium Duty Market

– Refuse / Dump / Mixer

– Transit and School Bus

– Pickup and Delivery Truck

– Medium Duty Specialty Vehicles

(street sweeper, yard spotter, etc…)

– Less then 54,000 LB CGWR

ISX12-G

– Regional Haul Truck

– Regional Tractor/trailer

– Vocational: Refuse / Dump / Mixer

– 65,000 LB CGWR; Diminishing load 80,000 LB20

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Value Spec Tool – Payback Calculator

Additional NG Scheduled

Maintenance Cost

~$1,135/year

$0.01.1 per mile

(Spark Plugs and

Overhead Valves)

Comments

Natural gas (NG) trucks cost more

NG Fuel cost is $25,337/yr lower

No DEF required with NG

NG maintenance higher

($1,135 per year)

Save $21,090.97 per year,

per truck

1.9 year Payback

on Incremental

Truck cost

Training: Key to Success for New NG Users

There are operation & maintenance differences

between a NG and diesel vehicle.

New users need an orientation for proper O&M:

– Follow Cummins maintenance guidelines

– Use only approved Cummins parts

– Use proper fuels and lubes

Training can be found in the typical sources:

– Cummins Virtual College ISL-G DVD Training Library

– Quick Serve On Line

– CumminsWestport.com

– ngvi.com, Natural Gas Vehicle Institute24

Cummins Westport Website

25

www.cumminswestport.com

■ New Website launched May 15, 2012

■ Great source of information about

natural gas engines and vehicles.

■ Features the Natural Gas Academy,

a series of instructional videos

■ Designed to provide a general

overview of natural gas as a fuel

whether it is compressed (CNG) or

liquefied (LNG), and how it is used

with vehicles.

What did we learn?

Natural Gas is Safe to handle and manage.

Simpler solution - No Aftertreatment.

Easy Maintenance.

DRAIN FUEL FILTER DAILY !

Diesel-like responsiveness

Half the Fuel Costs

Broadening product-line for all applications.

All supported by the World Class Cummins

Dealer Network.

Natural Gas is OUR fuel of the future!

Thank You

for the Invitation

to join You today!