Gas mileage 1991 nissan altima Source Source Source Source Source Source Source Source Source Source Read Also: 1991 Nissan 300zx twin turbo gas mileage 1991 Nissan hardbody gas mileage 1991 Nissan 300zx gas mileage 1991 Nissan micra gas mileage 1991 Nissan maxima se gas mileage 1991 Nissan 240sx gas mileage