Coolant; Fuels - LIMBACH L 2400 EF Operating And Maintenance Manual

10.2 Coolant

The cooling system is filled with a mixture of water and anti-freeze and corrosion
protection for all seasons. The amount of coolant is approximately 3.5 ltrs.
The mixing ratio may be varied between the following limits:
Frost protection
down to
-25 °C
-35 °C
-45 °C
Nitrite less and silicate less anti-freeze and corrosion protection may not be mixed with each other Anti-
freeze and corrosion protection fluid should comply with VW specification TL VW 774 C or TL VW 744 D
for coolant additives. Nitrite less coolant additives are available in different colors. Silicate less coolant
additives are usually red colored. A brownish color of the coolant may indicate mixing. When changing
the coolant, rinse the engine and radiator with clear water.

10.3 Fuels

Following fuels are factory approved:
•
Super Plus 98 fuel according to DIN EN 228,
•
AVGAS 100 LL,
•
or other unleaded fuels with a minimum octane rating of 98 RON and 87 MON.
Notes:
•
Fuel hoses and lines must be suitable for fuel.*)
•
Use fresh, brand name fuels only. Storage time for fuel is limited. If stored too long in ventilated con-
tainers, volatile components of the fuel may evaporate. That can change the properties of the fuel
(reduced octane number). Also the fuel properties depend on the calendar season.
•
Use of fuel additives is not permitted.
•
Mixing of leaded and unleaded fuels is not recommended. Use mixed fuel only in case of need.
Caution:
Use of other fuels is not approved by the manufacturer.
*) Fuels may contain alcohol. Please consult the instructions of your aircraft manufacturer.
Edition: 20.06.2018
Operating Manual
L 2400 EF/DF/ET/DT/DX/DS
Percentage anti-freeze
corrosion protection
40 % min.
50 %
60 % max.
Percentage water
60 %
50 %
40 %
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