Volvo VNL 780 Operator's Manual page 394

384 OPERATION
CAUTION
Use of diesel fuel other than ULSD and
engine oils other than VDS-4 or EO-O
Premium Plus, will adversely affect
performance, efficiency and durability
of the DPF system and the engine, to
the point where the engine may not run
at all. Manufacturer's warranties can
also be rendered void due to usage of
improper fuel. Unapproved fuel additives
(including engine oil) are NOT permitted.
Blends of No. 1D and No. 2D grades of
ULSD are recommended and allowable
for cold weather operations.
The diesel particulate filter takes the place of the standard muffler. Soot and other particulate
matter are collected by a filter where it is eventually oxidized using a regeneration process.
DANGER
During the regeneration process, the
temperature of the exhaust gases will
be elevated. DO NOT park or stop for
an extended period under low hanging
overhead flammable objects such as
trees, awnings, structures, etc., that
could be damaged by elevated exhaust
temperatures. Further, if the vehicle
is being operated in an area where
flammable vapors exist, the regeneration
process must be interrupted. Failure to
heed these cautions may result in fire or
explosion causing serious personal injury
or death.
There are two types of regeneration: at speed automatic and parked. Automatic regeneration
only occurs when the vehicle is moving at uninterrupted highway speed. Parked regeneration
is manually initiated when the vehicle is stationary. This is the standard configuration.
Other configurations are available.