not really a challenge but i wanted to get with all the cobalts out there and see what we can figure out with our cars the best things and techniques that work to build up gas mileage.
100% driving technique is one. i've figure out that by shifting at 2000 rpms on low accel has increased my mpg tremendously. even in town i get gains, in the process of making a front grill shield.
grsshpr1 
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