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Since you live in CA, I am assuming you bought the car there. Here are some reasons you are getting bad MPG: 1. 70-75 MPH is going to have an adverse affect on your gas mileage. Drag increases EXPONENTIALLY with speed, so slow down if you want better MPG. It doesn't help to go 70-75 with a car loaded down with heavy computer equipment. 2. California emissions choke your car's exhaust. An aftermarket intake and a free flowing exhaust will see good gains in HP and MPG. 3. The gas type is a major factor too. 87 octane, while the cheapest is not the best for performance. 89 is better, but since you live in CA with that smog and you CA emission restrictions.... 4. You want more power? Change your intake and exhaust, get a chip to reprogram your ECM and you wil get a HUGE gain. If you want better MPG, go back to my first point. If you really don't want to keep the car, trade up. Chevy will be coming out with the 2014 SS model in the fall, which will have performance, and maybe they will listen to the consumer this time and fix the trunk arms!Report it
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