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Old 09-20-2016, 12:10 PM   #8 (permalink)
Ecky
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Join Date: Dec 2011
Location: New Zealand
Posts: 5,016

ND Miata - '15 Mazda MX-5 Special Package
90 day: 40.51 mpg (US)
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MPGuino's are wonderful instruments. Their accuracy is usually better than OBD-based instrumentation, but you need to calibrate them, and installation is more complicated than simply plugging something into a port.
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