Volvo VAH 2013, Operator'S Manual, Page: 107 / 175

Operator's Manual Vehicle Maintenance
VN, VHD 103
Diesel Exhaust Fluid (DEF) Consumption
DEF consumption is related to fuel consumption. A highway truck may travel 225-300
mi or more on one gallon of DEF. A gauge much like a fuel gauge will indicate the
level of DEF in the tank. A DEF low-level warning will activate when DEF is low. If
a driver runs out of DEF completely, vehicle power will be reduced to derate mode.
Refill the DEF tank when refilling the fuel tank, the engine will resume normal power.
Note: DEF tanks are sized for a two to one fuel to DEF ratio in order to meet US
2010 requirements.
Diesel Exhaust Fluid (DEF) Availability
DEF will be available in 2.5 gallon containers, 55 gallon drums, 275 gallon IBC and
in bulk storage for fleet locations, truck stops and dealerships. All major truck stops,
dealers and distributors will carry DEF. For more information on DEF and availability
please visit the website www.Volvoscr.com.