Rotax 912-UL User Manual

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page 10 - 11
Jan. 01/2007
Effectivity: 912 Serie
OM Edition 1 / Rev. 0
BRP-Rotax
10.2.3) Lubricants
Oil: Motorcycle oil of a registered brand with gear additives. If
using aircraft engine oil; than only blended one.
■ CAUTION: At the selection of suitable lubricants refer to the
additional information in the Service Information
SI-912-016, latest edition.
Oil specification
— Use only oil with API classification "SG" or higher!
— 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: If the engine is mainly run on AVGAS more
frequent oil changes will be required. See
Service Information SI-912-016, latest edition.

Rotax 912-UL Specifications

General

Displacement	1211 cc
Bore x Stroke	79.5 mm x 61 mm
Compression Ratio	9.0:1
TBO (Time Between Overhaul)	2000 hours
Engine Type	4-cylinder, 4-stroke
Power Output	80 hp
Cooling System	Liquid/air-cooled
Fuel Type	Avgas 100LL or unleaded automotive gasoline
Oil Capacity	3 liters
Fuel System	2 carburetors
Oil System	Dry sump forced lubrication with separate oil tank
Reduction Gear Ratio	2.43:1
Max Continuous Power	75 hp (56 kW)