Rotax 912 i Series Service Instructions Manual page 6

SI-912 i-001R4
SI-912-016R9 / SI-914-019R9
4.3) Waterless coolant for engine types 912/914 Series
m
NOTICE
An advantage of waterless coolants is their high boiling point which prevents "boiling" of the cool-
ing system. However, its specific thermal capacity is lower than of conventional coolant which
resulting in slightly higher running temperatures.
The cooling system of ROTAX® engine types 912/914 Series (without Suffix - 01) is designed for
compatibility with waterless coolant and thus must not be modified, i.e. drainage or ventilation
holes must not be closed.
m
NOTICE
Recommended coolant (100% concentrate)
NOTE:
m
NOTICE
EVANS
4.3.1) Warnings for operating with waterless coolant
- Water or coolant containing water must never be added to the cooling system!
- The max. water content must not exceed 3.6 %; it can be tested using a Brix refractometer.
- Any water present in the cooling system is separated out as vapor. This can cause the cooling
system to fail due to insufficient coolant quantity.
27 March 2017
Copyright - BRP-Rotax GmbH & CO KG. All rights reserved.
Brand
®
VELVANA
®
YACCO
Waterless coolant is not permitted for engine types 912 i Series or for
WARNUNG
912/914 Series with cylinder head version Suffix - 01.
The certification and determination of the correct coolant type must be
WARNUNG
conducted by the aircraft manufacturer. As each aircraft type has different
characteristics, testing must be done to determine the most suitable cool-
ant and instrumentation for each aircraft type.
EVANS
several names. For some recent examples, see also the next table. For any
naming, specification or successor products contact your local EVANS
Cooling Systems, Inc. Official Partner
®
EVANS
WARNUNG
and expand like conventional coolant.
Brand
Aero Cool 180°
®
NPG+C
Evans High Performance Coolant USA and rest of the world
SERVICE INSTRUCTION
Description
FRIDEX G49
LR-35
®
Cooling Systems, Inc. offers its NPG+C coolant worldwide under
coolants are fully operational to -40 °C (-40 °F). It will not freeze
Description
Europe/Middle East
China
®
12-10-00
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