08-25-2017, 10:49 AM
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#38
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Senior Member
Join Date: Jul 2014
Drives: 2020 Hakone
Location: London, Ont
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Quote:
Originally Posted by zoltiz
Our consumption computer is a giant liar, btw. I record/reset every tank and math it, along with keeping track of the delta between actual and displayed MPG. My FR-S averaged 1MPG higher display than actual for 100-ish fill-ups, 86 so far is .8MPG higher on average, with some tanks being +1.8. I fill up at the same station 90% of the time.
Also, the more I baby the car, the more egregious the lie (my "35MPG" displayed results in 33.1 actual, while 25MPG displayed is 24.5-ish). Lies  |
Don't think that a difference of less than 10% is a "massive" lie but yes the computer will not agree with what you calculate. It is taking a real time averages at all times where manual calculations do not account for such things as sitting in traffic for long periods.
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