Engine Operation; Engine Exhaust Caution (Carbon Monoxide); Diesel Fuel - Blue Bird D3RE 2014 Driver's Handbook Manual

ENGINE OPERATION

Engine Exhaust Caution (Carbon Monoxide)

[WARNING] Never idle the engine in a confined area. Never sit in a parked or
stopped vehicle with the engine running. Exhaust gases, particularly carbon
monoxide, can build up. These gases are harmful and potentially lethal.
Carbon monoxide is colorless and odorless, but can be present with all other
exhaust fumes. Do not drive with exhaust fumes present.
If you suspect exhaust fumes are entering the bus, have the system inspected to
determine the source, and make the appropriate corrections immediately.
The best protection from carbon monoxide entry into the bus is a properly main-
tained engine exhaust system, body, and body ventilation system. It is recommend-
ed that the exhaust system and body be inspected by a competent mechanic:
• Each time the vehicle is raised for an oil change.
• Whenever a change is noticed in the sound of the exhaust system.
• Whenever the exhaust system under the body or the rear of the vehicle is
damaged.
• Whenever there is an inspection of piping and joints. Replace clamps that are
leaking.
Exhaust system clamps are not reusable. Seal with exhaust sealant and install
new clamp. Do not run the engine in a confined area (such as garages) longer than
necessary to move the vehicle in or out of the area. When your bus is stopped in an
open area with engine running for more than a short period, and if it is equipped
with combination heating and external ventilation, then adjust the heating or ven-
tilation system to force outside air into bus with the blower set at medium or high
speed.
Keep the air inlet grille clear of snow or other obstructions at all times to assure
proper operation of the ventilation system. Sitting in a parked vehicle with engine
running for an extended period, in either a confined or open environment, is danger-
ous.

Diesel Fuel

All American units should take advantage of the high energy content and generally
lower cost of No. 2 diesel fuel. Experience has shown that diesel engines will operate
satisfactorily on No. 1 fuel. The engine in this vehicle must be operated only with
ultra low sulfur diesel fuel (meeting EPA specifications for highway diesel fuel, includ-
ing a 15 ppm sulfur cap). Also see, Cummins Bulletin No. 3379001.
[WARNING] Use caution when filling the fuel tank(s) with a high delivery
nozzle to prevent spillage. Fuel spray can cause serious injury; vent slowly. Do
not fill to more than 95% capacity.
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DRIVER'S HANDBOOK
[CAUTION] In 2010 emission
standard compliant engines, use
only diesel fuel labeled Ultra Low
Sulfur, per the engine manufac-
turer's specifications.
In Cummins, use oils meeting API
CJ-4/SL and Cummins Engine
Standard CES-20081. See Cum-
mins Owners Manual ISB 6.7L
CM2150 for details.