Lubricating oil composition

Details Lubricating oil composition Lubricating oil composition

C - Chemistry, Metallurgy

10

M

C10M 107/20 (2006.01) C10M 135/18 (2006.01) G01N 33/30 (2006.01)

Patent

CA 2555096

To provide a fuel-efficient lubricating oil composition, particularly suitable for internal combustion engines, which has a reduced shear viscosity in an intermediate temperature range from 80 to 100°C, an effective temperature range for reducing fuel consumption. The present invention provides a lubricating oil composition comprising a base oil incorporated with a viscosity index improver, wherein the viscosity index improver has a peak area at a chemical shift between 3.4 and 3.7 ppm in a spectral pattern observed by nuclear magnetic resonance analysis (1H-NMR) accounts for 5% or more of the total peak area.

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