So anybody here have any ideas as to how i could get better gas mileage outta this car of mine? I drive about 20 to 60 miles a day. (pizza delivery) I'm not sure if it has something wrong with it or if its just normal but the car only gets 14 mpg in the city and 18 on the freeway. Here's an overview of what i have, 1972 240z with stock 2.4 liter, 4 speed tranny, stock dual S.U.'s (tuned by Steve at Ztherapy), and r180 rear end. Runs great and tranny or clutch doesn't seem to be slipping, but it needs an alignment and the rear end clunks and i think it should be a little faster. Here's what I've done to it so far. Tune up--- New Plugs/wires, K&N air filter, 280zx Electronic distributor, Electronic fuel pump, i think the oils 10w 30. new alternator, gas tank, front body kit, fuel lines cleaned. any ideas would be greatly appreciated:)