
As mentioned in several other reviews, I've recently noticed a 5-10% reduction in my Fit's fuel economy. I figured it might be my worn/under-inflated tires, but when things didn't improve after the replacement I started looking at other factors. I use an app (FuelLog) to track my gas mileage and expenses and when I traced the mpg graph back to 'fall' I noticed that it coincided with my air filter change. It may be a coincidence, but I think next time I'll spend a few bucks more on an OEM filter and see if it comes back.

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