Thread: whats peoples average mpg on 3.4 setup?

Originally Posted by footballplaya3k

I cannot imagine how rich your car was running if you got 14mpg on the highway.

It was bad you could watch the gas gauge drop

I just replaced my plugs and wires and still bad mileage. How likely is it that my cat is clogged? After all my car does have 133k on it. Hopefully ill soon be able to afford headers and eliminate it but untill then i dont want it to be hurting anything.