Pilot’s Operating Handbook Section 2
EXTRA 500 Limitations
9
Fuel Grades
Primary Fuel:
ASTM D 1655-03 or later, grade JET A or A-1
Cold weather fuel:
ASTM D 1655-03 or later, grade JET A or A-1 with anti ice
additive MIL-DTL-85470B or later
Caution Adding anti-icing additive into the fuel during
refueling.
Proper mixing of anti icing additive with fuel is
extremely important, because concentration in excess
of the recommended (0.10 % up to 0.15 % by volume)
will result in detrimental effects to the fuel tanks.
Note JET A and JET A-1 fuels are not restricted from use at
ambient temperatures below –18
°C (0 °F); however,
special provisions for starting (preheat to the engine
fuel control area) must be made. Once started, engine
operation will be satisfactory in outside temperatures
down to –32 °C (-25 °F) for JET A and JET A-1.
10 Use of Fuel Grades Temperature Dependent
Starting and operating temperature ranges:
Fuel grade for
Ambient temperature
Starting Operating
at +38 °C(+100 °F)
down to +4 °C (+40 °F)
Primary
below +4 °C (+40 °F)
down to-18 °C (+0 °F)
Cold weather
below -18 °C(+0 °F)
down to -32 °C (-25 °F)
Cold weather
preheated
Cold weather
Figure 2-3
26. January 2011 2-9
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