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Old 03-21-2009, 05:27 PM   #1 (permalink)
MetroMPG
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Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
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Honda Ridgeline MPG vs speed graph: fuel economy with & without cargo trailer

Another one to add to the pile. My brother's 2007 Ridgeline that he uses for his HVAC business:



Note: the '07 Ridgeline is rated by the EPA at:

I'll post the full details later, but it's pretty close to the same conditions & test method as the Corolla speed vs. mpg graph.

The truck has a full hard tonneau, and I inflated the tires to max sidewall.

Edit: here are the raw figures:

Without the trailer:

Code:
W (mpg US) ... E (mpg US) ... Avg
 
29.2 ... 28.3 ... 28.75
28.0 ... 30.0 ... 29
24.7 ... 27.2 ... 25.95
27.2 ... 29.2 ... 28.2
24.8 ... 26.6 ... 25.7
22.4 ... 24.3 ... 23.35
20.4 ... 21.1 ... 20.75
19.7 ... 21.4 ... 20.55
With the trailer:



Code:
W (mpg US) ... E (mpg US) ... Avg
 22.5 ... 25.4 ... 23.95
21.8 ... 24.2 ... 23
17.6 ... 18.9 ... 18.25
12.9 ... 16.7 ... 14.8
Conditions, route & methodology:

Weather conditions: 29 Dec '08, 34 F / 1 C, wind SSE 9 kts, pressure 29.6 in.

Route: 2 lane highway, straight, dry & nearly level

Methodology:

Speed was set once per pair of bi-dir runs with cruise control, cancelled with the brake between runs. Truck was brought up to speed & leveled off before passing a "start" marker (road sign) where the ScanGauge (not calibrated against refuelling) was reset. Reading was taken after passing a "finish" marker and cruise was cancelled.

Traffic conditions: There was no traffic in my lane and very little in the oncoming lane. (More than a few runs were done with me being the only car on that stretch of road.) If anyone caught up & overtook me, or if I caught up to another car, I ditched that run and did it again to avoid aero interference.

---

See also ....


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