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Old 10-04-2021, 10:04 AM   #145 (permalink)
Ecky
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Join Date: Dec 2011
Location: New Zealand
Posts: 5,096

ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.72 mpg (US)

Oxygen Blue - '00 Honda Insight
90 day: 58.53 mpg (US)
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Measured the calibration of the odometer and MPGuino using highway markers - they read ~1.1% low on distance, but perfectly agree with each other. The speedometer itself (original to the car) I judge has a tired spring, as it's pretty much dead on at low speeds, but reads more and more high the faster you go. At 65mph it shows ~4.5mph high, while it's closer to ~2mph high at 35. I might pull the needle off and split the difference.
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