3) Lubricants - Rotax 912 series Operator's Manual

10.2.3) Lubricants

Effectivity: 912 Serie
OM Rev. 3
Oil: Motorcycle oil of a registered brand with gear additives. If
using aircraft engine oil; than only blonded one.
CAUTION:
Oil specification
— Use only oil with API classification "SF" or "SG"!
— Due to the high stresses in the reduction gears, oils with gear
additives such as high performance motor cycle oils are
required.
— Because of the incorporated friction clutch, oils with friction
modifier additives are unsuitable as this could result in a
slipping clutch during normal operation.
— Heavy dury 4-stroke motor cycle oils meet all the requirements.
These oils are normally no mineral oils but semi- or full
synthetic oils.
— Oils primarity for Diesel engines are due to insufficient high
temperature properties and additives which favour clutch
slipping, generally unsuitable.
CAUTION:
AIRCRAFT ENGINES
At the selection of suitable lubricants refer to
the additional information in the Service Infor-
mation SI-18-1997, latest edition.
If the engine is mainly run on AVGAS more
frequent oil changes will be required. See
Service Information SI-18-1997, latest edition.
page 10 - 11
July. 01/2004