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Old 01-12-2016, 04:05 PM   #2 (permalink)
Daox
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Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,037

CM400E - '81 Honda CM400E
90 day: 58.68 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)
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A filter is designed to flow the amount of air needed at maximum power output. We never really cruise and very rarely accelerate at maximum power output. Therefore, air filter flow really isn't important for fuel economy.

I just buy whatever paper aftermarket filter.
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