Recommended oil for engines without exhaust treatment:
The engine oil must meet the following classification:
■ ACEA, class E4, E7
■ API, class CF, CI-4
Recommended oil for engines with exhaust treatment:
The engine oil must meet the following classification:
■ ACEA, class E9
■ API, class CI-4
➤ Use only engine with low white ash build up.
■ Engine oils that do not conform to the above can shorten the useful life of the engine.
■ The use of unlisted engine oils requires prior authorisation by KAESER.
➤ Contact KAESER SERVICE.
Viscosity:
For selecting the appropriate viscosity class, you must take the ambient temperature at the installa‐
tion site or the machine deployment area into account. Excessively-high viscosity can cause start‐
ing difficulties, while a too low viscosity reduces the lubricating capacity and may cause very high
oil consumption.
Viscosity is classified by SAE.
Always use multi-grade lubricating oils!
Always ensure the prescribed lubricating oil quality when selecting the viscosity class!
Ambient temperatures [°F]
Viscosity class
< –13 ..... 86
SAE 0 W-30
SAE 0 W-40
–13 ..... > 86
SAE 5 W-30
SAE 5 W-40
–4 ..... > 86
SAE 10 W-30
SAE 10 W-40
SAE 10 W–50
5 ..... > 86
SAE 15 W-30
SAE 15 W-40
SAE 15 W-50
23 ..... > 86
SAE 20 W-40
SAE 20 W-50
Tab. 33 Engine oil recommendation
For outdoors ambient temperatures below −4 °F, use engine oil of SAE class 5 W–30.
2
Technical Data
2.6
Engine
14
Operator Manual Screw Compressor
M250 SIGMA CONTROL MOBIL
No.: 9_9570 07 USE
Option le
Option lc