Q: I am getting horrible gas mileage.
I drive an 07 corolla that is supposed to get 34 mpg but I am only getting about 22 mpg on the highway. I have checked tire pressure, replaced both 02 sensors, replaced both air filter and cabin air filter, replaced mass air flow sensor, replaced fuel injectors, put seafoam cleaner in gas tank, and bought new tires. I can't figure out why I am getting such bad mpg! I have spoken with several mechanics and no one can tell me. I even called Toyota and they said check tire pressure. Any ideas?
My car has 150000 miles.
My car has an automatic transmission.
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