Mobil Mobiltherm 611

Name: Mobil Mobiltherm 611
Brand: Mobil

Other oil

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Key specs

Spec	Value	Method
KV40	490 cSt	ASTM D445
KV100	31.5 cSt	ASTM D445
Viscosity index	—	ASTM D2270
Pour point	-6 °C	ASTM D97
Flash point	294 °C	ASTM D92
Density at 15 °C	0.906 g/cm³	typical

Grade checks

No ISO grade is stored.

Viscosity and temperature

ASTM D341 (Walther) fitted to the published KV40 and KV100. It is an interpolation between those two points, and it is not meaningful below the pour point. Move the control to read a temperature.

Operating temperature 40 °C

Classification

Category: Other
Synthetic: Conventional
Copper: Unlisted
Note: Heat transfer oil

Equivalents

Oil	Score	Why
Shell Catenex Oil S 579	30	KV40 within 10%, conventional, pour -6 vs -6, flash within 15 °C

Scores use published typical data. This is not an exact equivalent, and it is not an OEM approval. Confirm the substitute with the machine builder.

Documents

Questions

What is a Mobil Mobiltherm 611 equivalent?

No other brand in this catalogue clears the equivalents bar for this oil yet (same application, same grade, compatible base oil, and a score of 60 or more). That is not proof that nothing else works. Check the machine manual.

Can Mobil Mobiltherm 611 be mixed with another oil?

Mixing two oils that share a base family is sometimes done and sometimes a mistake. Do not mix this oil with a PAG. For any other mix, follow the maker's change-over guidance and the machine manual.

Report a data error

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