Im telling you that the Scangauge is the single best thing ive done. I felt like you, that it was too expensive, i was doing well. My 09 Honda fit went from 38-39 mpg to 42. I've seen bursts of over 52mpg on trips. It shows you were exactly the sweet spots are. Especially during DWL. Because you can see what engine LOD is most efficient. What speeds net better mpg, what shift points. And something i've learned that i didn't even realize before was I can't tell very well if I'm on a mild uphill or downhill. The can tell instantly on the Scangauge. And I know when to push harder or back off. And as far as overheating that civic. I seriously doubt it. Even in CA. I blocked the entire front of my Fit off and the temps stayed beautifully. However with the scanguage as well you can monitor it the whole time. If you only made one decision, I would recommend getting something to monitor your car with.
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The pessimist says “The glass is half empty,” the optimist says “The glass is half full,” and the minimalist says “We’ve got about twice as much glass as we need here.”
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