| abstract |
SUMMARY OF THE INVENTION The present invention provides a liquid hydrocarbon fuel comprising a major amount and a compound of formula (I): Wherein n represents an integer of 10 to 20, and R 1 represents a linear or branched C 8 -C 18 -alkyl group or a C 8 -C 18 -alkenyl group. At least one propoxylate-additive having a cleaning effect, optionally at least one cleaning additive, for example of the formula R 2 —NH 2 (II), wherein R 2 has a number average molecular weight of about 500 to about Represents a linear or branched polyalkyl group having 5000] polyalkylamine-additive, a fuel composition for an internal combustion engine, and a propoxylate of the formula (I) and optionally another It relates to a fuel additive composition containing an additive, for example, a polyalkylamine of the above formula (II) as an intake valve cleaner. |