Paccar PX-9 Operator's Manual - page 75
MAINTENANCE SPECIFICATIONS
The following chart lists acceptable
types of fuels for this engine.
Acceptable Types of Fuels
Number
1D
Diesel
(1)
(2)
Number
2D
Diesel
(2)
Number
1K
Kerosene
Jet-A
Jet-A1
JP-5
JP-8
Jet-B
JP-4
CITE
OK
OK
NOT OK
NOT OK
NOT OK
NOT OK
NOT OK
NOT OK
NOT OK
NOT OK
48-34
(3)
40-24
(3)
50-35
(3)
51-37
(3)
51-37
(3)
48-36
(3)
51-37
(3)
57-45
(3)
57-45
(3)
57-45
(3)
1.
Any adjustment to compensate for reduced performance with a fuel system using alternate fuel is not warrantable.
2.
Winter blend fuels, such as found at commercial fuel dispensing outlets, are combinations of number 1D and number 2D diesel fuel
and are acceptable.
3.
BTU Content/Degree API Gravity - Low API gravity fuels have a higher thermal energy content (BTU). As a general rule, there is a three to
five percent decrease in BTU content for every 10 degree increase in API gravity, there is also a 0.7 degree API gravity increase with an
increase in fuel temperature. This decrease in energy content equates roughly to the same percentage of power loss. Use of fuels with
higher API gravity will cause higher than normal fuel consumption.
(12/2014)
Y53-1185-1B1
5-21
5