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Old 12-17-2009, 07:51 PM   #13 (permalink)
bwilson4web
Engineering first
 
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Join Date: Mar 2009
Location: Huntsville, AL
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17 i3-REx - '14 BMW i3-REx
Last 3: 45.67 mpg (US)

Blue Bob's - '19 Tesla Std Rng Plus
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Hi,

One of the reasons I plot 'mph vs MPG' is to determine if the problem is vehicle or something else. My first fill-up in the 2003 Prius was the first car data point in this chart:

The first data point was the airplane trip out to get the car and drive back. My first fill-up was the 39 MPG mark at 75 mph.

The first thing I do is ask the complainer to drive a circular route, a by-pass, that is relatively flat at a cruise control speed. Do one warm-up pass and then reset the trip meter. Once they realize the vehicle CAN achieve the predicted mileage, they start listening and to a greater or lessor extent, following good advice.

This is the detailed chart for the NHW11 Prius:


This is my ZVW30, 2010 Prius, chart:


Bob Wilson
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2019 Tesla Model 3 Std. Range Plus - 215 mi EV
2017 BMW i3-REx - 106 mi EV, 88 mi mid-grade
Retired engineer, Huntsville, AL
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