Owner`s manual

CHASSIS INFORMATION — 10
212
2008 KNIGHT
Oil additives should not be used unless
the oil supplier or oil manufacturer has been
consulted and provided positive evidence or
data establishing satisfactory performance in the
engine.
NOTE
The engine does not require a “break-
in” procedure.
INFORMATION
Refer to the engine OEM manual for
details on the oil maintenance schedule.
NOTE
The Engine is filled with 15W-40
multi-viscosity oil from the factory.
ENGINE SHUTDOWN
Allow the engine to idle three to ve minutes
after a full load operation. This allows adequate
cool down of pistons, cylinders, bearings and
turbocharger components. Under normal driving
conditions, exiting the highway is generally
lighter engine operation and the need for the
three to ve minutes is not necessary.
Extended Engine Shutdown
When the motorhome has been sitting for
30 days or more, verify all the uid levels are
correct. Follow the normal starting procedures.
If the oil pressure gauge does not register within
15 seconds, shut off the engine immediately
to avoid damage. Consult the engine
manufacturer’s owner’s manual for guidelines
on troubleshooting low oil pressure, or contact
a qualied service technician. Allow the engine
to idle for ve minutes before operating under a
load.
COOLANT SYSTEM
A fully formulated coolant is recommended
to simplify cooling system maintenance. The
system uses a fully formatted antifreeze or
coolant. Coolant that is fully formulated contains
balanced amounts of antifreeze, Supplemental
Coolant Additive (SCA), buffering compounds
and clean, quality water.
The difference between fully formatted
antifreeze and fully formatted coolant is the
percentage of water. The antifreeze of coolant
must meet ethylene glycol or propylene glycol
recommendations.
Antifreeze that is not fully formulated must be
mixed with clean, quality water (distilled water
preferred) in a 50/50 ratio (40 to 60% working
range). This ratio will provide protection from
-33º F. to 226º F boiling point. The actual lowest
freezing point of ethylene glycol antifreeze is
at 68 percent. Using higher concentrations of
antifreeze will raise the freezing point of the
solution and increase the possibility of a silica
gel problem.
Antifreeze must be of low silicate content
as dened by ASTM D-4985. The 50/50 ratio
of antifreeze and clean quality water plus
SCA must be premixed prior to being put in
the cooling system. The 50/50 mix ratio must
be premixed prior to being put in the system.
Placing antifreeze and then water in the cooling
system is not recommended. Refer to the OEM
engine manual for more information.
CAUTION
An over-concentration of antifreeze
will reduce freeze protection. Use of
high silicate antifreeze can damage
the cooling system and engine. SCA is
required in the cooling system to inhibit
cylinder liner pitting as a result of
cavitation erosion.
WARNING
DO NOT continue engine operation
if engine temperature rises and the
Warning light on the dash illuminates.
The engine protection software will
begin to decrease fuel (derate) to the
engine regardless of throttle position.
Continued operation will result in severe
engine damage.
070201
Lubricating oil recommendations and specications.