GASOLINE COMPOSITION

摘要

The invention provides a gasoline composition comprising a hydrocarbon base fuel containing 5 to 20% v olefins, not greater than 5% v olefins of at least 10 carbon atoms, not greater than 5% v aromatics of at least 10 carbon atoms, initial boiling point in the range 24 to 45<0>C, T10 in the range 38 to 60<0>C, T50 in the range 77 to 110<0>C, T90 in the range 130 to 190<0>C and final boiling point not greater than 220<0>C; a method of operating an automobile using the gasoline composition as fuel; and use of gasoline composition as fuel with improved stability of engine lubricant and with reduced frequency of engine oil changes.