I own a 91 Mazda 323. I am presently recieving 100km per 12.5 liters of gas. Thats not good. I have changed the air filter, plugs and plug wires, had the timming adjusted, replaced the fuel pump. I would love to hear a solution.

i have a 89 323 and the gas tanks were made poorly is you go to www.mazda323performance.com it will tell you that the 323 has a problem with the gas tanks rusting where it will evaporate some.