Method, motor fuel composition and concentrate for control...

Details Method, motor fuel composition and concentrate for control... Method, motor fuel composition and concentrate for control...

C - Chemistry, Metallurgy

10

L

44/19

C10L 1/22 (2006.01) C10L 1/14 (2006.01) C10L 1/16 (2006.01)

Patent

CA 1174850

A B S T R A C T METHOD, MOTOR FUEL COMPOSITION AND CONCENTRATE FOR CONTROL OF OCTANE REQUIREMENT INCREASE The control or reversal of octane requirement increase phenomenon together with improved fuel economy in a spark ig- nition internal combustion engine is achieved by introducing with the combustion charge a fuel composition containing an octane requirement increase-inhibiting amount of (a) certain oil soluble aliphatic polyamines and (b) certain low molecular weight polymers and/or copolymers of monoolefins having up to 6 carbon atoms, in certain ratio.

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