1984 Nissan 300zx fuel economy Gas Mileage of 1984 Nissan 300ZX - Fuel Economy Find a fuel efficient vehicle that meets your needs. Used Car Label Selling your car? We can help you advertise its mpg. 1984 Nissan 300ZX. EPA... Source Source Source Source Source Source Source Source Source Source Read Also: 1984 Nissan 300zx turbo mpg 1984 Nissan 300zx gas mileage 1984 Nissan datsun 300zx mpg 1984 Nissan 300zx mpg 100 1984 300Zx in mile nissan Nissan 300zx tt fuel consumption