Lubricating composition
AssigneeShell Oil Company
InventorsRichard Thomas DIXON, Gillian Elizabeth HUNT
Life of this patent
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Abstract
The present invention provides a lubricating composition comprising: (i) a base oil; (ii) a non-silicone anti-foam agent; and (iii) one or more performance additives; wherein the composition has a kinematic viscosity at 100° C. (according to ASTM D445) of 16.3 mm2/s or less, a low temperature cranking viscosity of at most 6600 cP at −30° C. (ASTM D5293) and a NOACK volatility of at most 11% according to CEC-L-40-93.
Claims19
A lubricating composition comprising:
- (i) a base oil;
- (ii) a non-silicone anti-foam agent;
- and
- (iii) one or more performance additives;
- wherein the composition has a kinematic viscosity at 100° C. (according to ASTM D445) of 16.3 mm2/s or less, a low temperature cranking viscosity of at most 6600 cP at −30° C. (ASTM D5293) and a NOACK volatility of at most 11% according to CEC-L-40-93.
(canceled)
(canceled)
A method of lubrication comprising applying a lubricating composition to a crankcase of an engine, wherein the lubricating composition comprises:
- (i) a base oil;
- (ii) a non-silicone anti-foam agent;
- and
- (iii) one or more performance additives;
- wherein the composition has a kinematic viscosity at 100° C. (according to ASTM D445) of 16.3 mm2/s or less, a low temperature cranking viscosity of at most 6600 cP at −30° C. (ASTM D5293) and a NOACK volatility of at most 11% according to CEC-L-40-93.
Dependencies are inferred from the claim text.