Paccar PX-9 Operator's Manual - page 77
MAINTENANCE SPECIFICATIONS
In particular, operators should be
aware that biodiesel blends are
more prone to cold flow (gelling) and
filter plugging issues compared to
conventional diesel fuel. If vehicles
are expected to be operated in
temperatures below freezing, care
should be taken to ensure that both the
biodiesel fuel used and the appropriate
vehicle fuel system accessory heaters
are utilized.
Operators should also be aware that
biodiesel energy content (by volume)
is lower than diesel which can reduce
fuel economy by up to two percent.
Lubricating Oil
Recommendations and
Specifications
General Information
CAUTION
Extending the oil and filter change
interval beyond the recommenda-
tions will decrease the engine life
due to factors such as corrosion,
deposits, and wear.
Engine oil
filters capture dirt and remove de-
posits from the oil to prolong the
life of internal moving components.
Follow the oil and filter change
intervals as recommended in this
section of the manual. Failure to
comply may result in equipment or
property damage.
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 recommendations will decrease
engine life due to factors such as
corrosion, deposits, and wear. Refer
to “Oil Drain Intervals” on page 5-11
to determine which oil drain interval to
use for an application.
NOTE
It is the owners responsibility to
correctly follow lubricating oil rec-
ommendations.
If recommenda-
tions are ignored, the engine war-
ranty could be affected.
(12/2014)
Y53-1185-1B1
5-23
5