User guide

COOL–DOWN IDLE CHART

TURBOCHARGER "COOL DOWN" CHART

Driving Conditions Load Turbocharger

Temperature

Idle Time (in

minutes) Before

Shut Down

Stop and Go Empty Cool Less than 1

Stop and Go Medium Warm 1

Highway Speeds Medium Warm 2

City Traffic Max. GCWR Warm 3

Highway Speeds Max. GCWR Warm 4

Uphill Grade Max. GCWR Hot 5

DIESEL EXHAUST FLUID

• Diesel Exhaust Fluid (DEF) sometimes known simply by the name of its active

component, UREA—is a key component of selective catalytic reduction (SCR)

systems, which help diesel vehicles meet stringent emission regulations. DEF

is a liquid reducing agent that reacts with engine exhaust in the presence of a

catalyst to convert smog-forming nitrogen oxides (NOx) into harmless nitrogen

and water vapor.

• Your vehicle is equipped with a Selective Catalytic Reduction system in order

to meet the very stringent diesel emissions standards required by the

Environmental Protection Agency. Selective Catalytic Reduction (SCR) is the

first and only technology in decades to be as good for the environment as it is

good for business and vehicle performance.

• The purpose of the SCR system is to reduce levels of NOx (oxides of nitrogen

emitted from engines) that are harmful to our health and the environment to an

almost near-zero level. Small quantities of Diesel Exhaust Fluid (DEF) are

injected into the exhaust upstream of a catalyst where, when vaporized,

convert smog-forming nitrogen oxides (NOx) into harmless nitrogen (N2) and

water vapor (H2O), two natural components of the air we breathe. You can

operate with the comfort that your vehicle is contributing to a cleaner, healthier

world environment for this and generations to come.

System Overview

• This vehicle is equipped with a Diesel Exhaust Fluid (DEF) injection system

and a Selective Catalytic Reduction (SCR) catalyst to meet the emission

requirements.

• The DEF injection system consists of the following components:

• DEF tank

• DEF pump

• DEF injector

• DEF control module

• NOx sensors

• Temperature sensors

• SCR catalyst

DIESEL