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DX,FUEL10 –19–16DEC05–1/2
Minimizing the Effect of Cold Weather on Diesel Engines
John Deere diesel engines are designed to operate
effectively in cold weather.
However, for effective starting and cold weather
operation, a little extra care is necessary. The
information below outlines steps that can minimize the
effect that cold weather may have on starting and
operation of your engine. See your John Deere dealer
for additional information and local availability of cold
weather aids
Use Winter Grade Fuel
When temperatures fall below 5°C (40°F), winter grade
fuel (Grade No. 1-D fuel in North America) is best
suited for cold weather operation. Winter grade fuel
has a lower cloud point and a lower pour point.
Cloud point is the temperature at which wax will begin
to form in the fuel and this wax causes fuel filters to
plug. Pour point is the temperature at which fuel
begins to thicken and becomes more resistant to flow
through fuel pumps and lines.
NOTE: On an average, winter grade fuel has a lower
BTU (heat content) rating. Using winter grade
fuel may reduce power and fuel efficiency, but
should not cause any other engine
performance effects. Check the grade of fuel
being used before troubleshooting for low
power complaints in cold weather operation.
Air Intake Heater
An air intake heater is an available option to aid cold
weather starting.
CAUTION: Do not use any starting fluid with
an air intake heater.
Starting Fluid
A starting fluid port on the intake is available to aid
cold weather starting.
CAUTION: Do not use any starting fluid with
an engine equipped with glow plugs
Coolant Heater
An engine block heater (coolant heater) is an available
option to aid cold weather starting.
Seasonal Viscosity Oil and Proper Coolant
Concentration
Use seasonal grade viscosity engine oil based ion the
expected air temperature range between oil changes
and proper concentration of low silicate antifreeze as
recommended. (See DIESEL ENGINE OIL and
ENGINE COOLANT requirements this section.)
Diesel Fuel Flow Additive
Use John Deere Premium Diesel Fuel Conditioner
(Winter) or equivalent to treat fuel during the cold
weather season. This winter formulation is a
combination diesel fuel conditioner and anti-gel
additive.
IMPORTANT: Treat fuel when outside temperature
drops below 0°C (32°F). For best
results, use with untreated fuel.
Follow all recommended instructions
on label.
Winterfronts
Use of fabric, cardboard , or solid winterfronts is not
recommended with any John Deere engine. Their use
can result in excessive engine coolant, oil, and charge
air temperatures. This can lead to reduced engine life,
loss of power and poor fuel economy. Winterfronts
may also put abnormal stress on fan and fan drive
components potentially causing premature failures.
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