ENGINE FUEL REQUIREMENTS
Your engine is designed to operate efficiently in normal
operations on "Regular" grade fuels of at least 91 RON
designation. The latter figure is now generally posted on fuel
dispensing pumps. It is recommended that the maximum
octane rating used be no more than four octane numbers
above the minimum of 91 octane. "Low Lead" fuel containing
at least .13 gpl (.05 gpg) lead, or the equivalent additive, per
liter (gallon) may be used.
Continuous use of gasoline which is completely free of
lead, or other lubricating additives such as phosphorous, is
not recommended. Prolonged use of such fuel can cause
excessive exhaust valve seat wear resulting in loss of
emission control, poor performance and possible engine
failure. Use of a fuel which is to low in anti-knock quality will
result in "spark knock". Since anti-knock quality of all
"Regular" grade gasolines is not the same and factors such as
altitude, terrain and air temperature affect operating efficiency,
knocking may result even though you are using the grade of
fuel recommended for your engine.
ENGINE FUEL AND LUBRICANT
The following is the International Harvester Truck
Division's policy on the use of fuel and lubricant supplement
"It is the International Harvester Truck Division's policy
to develop and build trucks that will operate satisfactorily on
fuels and lubricant of good quality marketed by the petroleum
industry. The Truck Division does not recommend the use of
any supplementary fuel or lubricant additives. The vehicle
warranty shall not apply to any unit which has been subjected
to misuse, negligence or accident. Malfunctions attributable
to neglect or failure to follow the manufacturer's fuel or
lubricating recommendations may not be within the coverage
of the warranty."
ENGINE GOVERNED SPEEDS
The governor has two functions: First, it provides the
exact amount of fuel needed for idling position. Second, it
overrides the throttle and shuts off fuel if engine rpm exceeds
the maximum rated speed.
A basic rule of good engine operation concerns the
importance of idling the engine from three to five minutes
before shutting down. This few
minutes idling allows the lubricating oil and water to carry
heat away from the iron masses.
The larger the engine, the greater the need for this
idling period and of course, the length of the idling period
should somewhat follow the size of the engine in order to
avoid seals or like features of an engine being damaged by
To stop the engine turn the ignition switch to "OFF"
position and pull out on engine fuel shut-off control (diesel
only) until engine stops.
ENGINE SHUT-OFF LPG ENGINE
After the engine has completed its run and the engine
is to be shut-off for an indefinite period of time, it will be
necessary to close all tank valves and run the engine until the
fuel is exhausted.
If your vehicle is equipped with push button starting
system, turning key to the right, then pushing in on starting
button starts the engine.
If your vehicle is equipped with ignition switch key starting
system turning key to the extreme right engages the starting
Depending on starting system, either release
the push button or ignition switch key instantly
after engine starts to avoid damage to the
starting motor. If the engine does not start
STARTING MOTOR OR THE BATTERY. Do
not use the starting motor longer than 30
seconds at a time.
Wait at least 15 seconds between attempts to
start the engine to prevent heat (generated in
the starting motor) from scorching the starting
DO NOT START OR RUN AN ENGINE
WITHOUT VEHICLE BEING COMPLETELY
VENTILATED AT ALL TIMES. Exhaust gas
from all internal combustion engines contains
posionous carbon monoxide gas which is
odorless, tasteless, and colorless. When
vehicle is started inside, keep garage doors
wide open. This poisonous carbon monoxide
| gas will not only cause drowsiness, but could
be fatal. Proper ventilation while operating
vehicle must be adhered to.