2008 Bmw 550i fuel mileage Source Source Source Source Source Source Source Read Also: 2008 Bmw 550i gas mileage 2008 Bmw 550i fuel economy 2008 Bmw 550i fuel consumption 2008 Bmw 550 fuel economy 2008 Bmw 550i mpg 2009 Bmw 550i gas mileage