SECTION 03: FUEL SYSTEM
DOB 2490-2789 | X3-45 Commuter PA1605 Maintenance Manual (Section 03 revised May 2018)
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4.
FUEL SPECIFICATIONS
The quality of fuel oil used for high-speed diesel
engine operation is a very important factor in
obtaining satisfactory engine performance, long
engine life and acceptable exhaust emission
levels.
The U.S. Environmental Protection Agency
(EPA) has issued new standards to improve air
quality by significantly reducing emissions
through a combination of cleaner-burning diesel
engines and vehicles.
To meet EPA standards, the petroleum industry
produces
Ultra Low Sulfur Diesel
(ULSD) fuel,
also referred to as S15, containing a maximum
15ppm (parts-per-million) sulfur.
On-highway diesel engines meeting 2010
emission regulations are designed to operate
ONLY
with ULSD fuel. ULSD fuel will enable the
use of cleaner technology diesel engines and
vehicles with advanced emissions control
devices, resulting in significantly improved air
quality.
4.1 FUEL TYPE
EPA-10 and later engines like the Volvo D13 are
designed to run on
Ultra Low Sulfur Diesel
(ULSD) fuel, which can contain no more than 15
ppm sulfur.
Fuel used must meet engine manufacturer’s
specification.
Refer to Volvo engine
specifications.
CAUTION
ULSD fuel is necessary to avoid fouling the
engine’s Exhaust Aftertreatment System.
Improper fuel use will reduce the efficiency of
the engine’s Aftertreatment System and may
permanently damage the system.
CAUTION
Owners of 2010 and later model years on-
highway diesel engine must refuel only with
ULSD fuel.
NOTE
Burning Low Sulfur Diesel fuel (instead of
ULSD fuel) in 2010 and later model year
diesel engines is illegal and punishable with
civil penalties.
4.2 BLENDING
Only ultra low sulfur kerosene – No.1 diesel with
no more than 15ppm sulfur may be blended with
ULSD fuel to improve cold weather
performance. With so many kerosene
formulations on the market, care must be taken
to select kerosene with a maximum of 15ppm
sulfur.
Blend rates remain the same as with Low Sulfur
Diesel fuel.
4.3 BIODIESEL FUELS
Biodiesel up to a maximum of 20% blend (B20)
may be used and will not affect the
manufacturer’s mechanical warranty as to
engine and emissions system related
components, provided the biofuel used in the
blend conforms to ASTM D6751, B1 to B5
blends conform to ASTM D975, and B6 to B20
blends conform to ASTM D7467. Also, any
engine performance problem related to the use
of biodiesel fuel would not be recognized nor
considered as Volvo or Prevost’s responsibility.
However, Volvo engines are certified to comply
with U.S. EPA and California emissions
standards based upon the use of test fuels with
specifications established by these regulatory
agencies. Alternative fuels, including biodiesel,
that are not substantially similar to the required
test fuels may adversely affect engine emissions
compliance. As a result, Volvo does not warrant
the engine will conform to applicable Federal or
California emissions limits when operated on
biodiesel or other alternative fuels that are not
substantially similar to specified test fuels used
for certification.
5.
AIR CLEANER (DRY TYPE)
The vehicle is equipped with a dry-type
replaceable element air cleaner, located in the
engine compartment. Access the air cleaner
through the engine R.H. side door. Engine air
enters the air cleaner through one intake duct
located just above engine R.H. side door.
5.1 AIR CLEANER SERVICING
Stop the engine, open the R.H. side engine
compartment door, and loosen the wing nut
retaining the air cleaner element to the air
cleaner. Remove the element by pulling on the
handle in the center of the air cleaner element.
Install cleaner element as follows:
