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gas mileage

  1. Engine Performance
    I need some help. My Fj gets about 10mpg no matter what kind of driving I do. It’s an 07 6spd manual and has 120k miles. Before I go anywhere I am getting a PO430 code, which I believe is tied to my issue. I will say I do a lot more city driving than highway. But 10mpg can’t be right. My truck...