Just purchased MPGuino, but I have a feeling it won't give me too much of a boost as i've done my research over the years and done some trial and error on different driving strategies, but maybe I'll be surprised. I'm hopeful I'll get a few mpg's boost using it. Been getting 54 mpg's in warm weather and around 45 mpg's in this winter weather. Been running 40 psi on the tires. I may bump them up to 45 or 50 psi. I just don't want to get tire bulges with the current tires. Once they are worn, I'll look into low rolling resistance tires. I also trimmed the only outside mirror...the driver side to a tiny little mirror. It literally is around 20% of the size it was before and hugs the car...it only protrudes out about 2.5 inches. No more worrying about some clumsy person walking by and knocking it off... had that happen before!
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