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Old 01-03-2018, 09:28 AM   #38 (permalink)
Ecky
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Join Date: Dec 2011
Location: New Zealand
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ND Miata - '15 Mazda MX-5 Special Package
90 day: 40.51 mpg (US)
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Easiest way to improve city economy is a kill switch, and run the engine is little as possible. Kill it at traffic lights, while coasting, etc. and you'll get considerably more benefit than improving the engine's efficiency.
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