WP13 Diesel Engine Series Operating Manual
4
Chapter III Fuel, Lubricating Oil, Coolant and Auxiliary Materials
for Diesel Engine
3.1 Fuel
Summer: 0# diesel fuel (GB252)
Winter: -10# light diesel fuel for general use (GB252), but when the air temperature is below -20°C,
-20# diesel fuel should be used; when the outdoor temperature is below -30°C, -35# diesel fuel
should be used.
3.2 Engine Lubricating Oil
Lubricating oil capacity of diesel engine: 28L for trucks (reference value), 25L for buses (reference
value), subject to the oil dipstick mark (with the oil capacity slightly different for different models).
Selection of lubricating oil: in order to achieve safe and reliable operation of your diesel engine,
please use such grades of lubricating oils 15W/40CF-4 or 20W/40CF-4. Therein, 15W/40CF-4 and
20W/40CF-4 can be applicable within the range of -15°C to +30°C and -10°C to +30°C
respectively (Weichai special oil is recommended), but 5W/20CF-4 lubricating oil should be used
when lower than -15
℃
.
Ambient
temperature
Multistage oil
Ambient
temperature
Figure 3-1 Table for Grade Options of Lubricating Oil
Attention: The WP13 series diesel engines shall never use any lubricating oil below level CF,
and once the engine oil is replaced, you should replace the oil filter element at the same time!
3.3 Lubrication of Tension Gear
For the lubrication of tension gear , lithium base grease common for automobiles should be used
(see the GB5671 standard).
