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Title: Method and fuel composition for control or reversal of octane requirement increase and for improved fuel economy

Patent ·
OSTI ID:6773074

The control or reversal of octane requirement increase phenomenon together with improved fuel economy in a spark ignition 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.

Assignee:
Shell Oil Co
Patent Number(s):
US 4357148
OSTI ID:
6773074
Resource Relation:
Patent File Date: Filed date 13 Apr 1981; Other Information: PAT-APPL-253344
Country of Publication:
United States
Language:
English