Paccar PX 8 Operator's Manual - page 68
Maintenance Specifications
– 62 –
Y53-1030A 12/09
PACCAR
NOTE: PACCAR requires all permissible fuels to
have adequate fuel lubricity. Lubricity can be mea-
sured by ASTM, specification D6079, ISO 12156,
High Frequency Reciprocating Rig (HFRR) in which
the fuel must have a wear scar diameter of 0.52 mm
[0.02 in] or less.
Warranty and the Use of Biodiesel Fuel
PACCAR Inc approves the use of biodiesel fuel blends up to
5% by volume in diesel fuel that meets all of the following
three conditions:
• The biodiesel used in the blend meets ASTM Stan-
dard D 6751 or EN 14214 specifications.
• The biodiesel used in the blend is sourced from a
BQ-9000 Accredited Producer.
• The finished blend meets the fuel properties of
ASTM Standard D 975 or EN 590 specifications.
The use of approved biodiesel fuel does not affect the
PACCAR engine warranty. Failures caused by the use of
non-approved biodiesel fuels or other fuel additives that are
of unacceptable quality or do not meet specified industry
standards are not defects of PACCAR parts or workmanship
and therefore will not be a covered by the PACCAR engine
warranty.
Lubricating Oil Recommendations and
Specifications
General Information
CAUTION: Extending the oil and filter change
interval beyond the recommendations will
decrease the engine life due to factors such as
corrosion, deposits, and wear. Engine oil filters
capture dirt and remove deposits from the oil to
prolong the life of internal moving components.
Follow the oil and filter change intervals as rec-
ommended in this section of the manual.
The use of quality engine lubricating oils, combined with
appropriate oil drain and filter change intervals, is a critical
factor in maintaining engine performance and durability.
Extending the oil and filter change interval beyond the recom-
mendations will decrease engine life due to factors such as
corrosion, deposits, and wear. Refer to “
Oil Drain Intervals
”
on page 49 to determine which oil drain interval to use for an
application.
NOTE: The responsibility is with the owner. If rec-
ommendations are ignored, warranty could be
affected.
API: American Petroleum Institute