Thread: High Speed MPG
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Old 11-12-2007, 10:52 AM
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bwilson4web bwilson4web is offline
Engineering first
 
Real Name: Bob
Location: Huntsville, AL
Hybrids: Prius Classic 03
Posts: 5,028
Default Re: High Speed MPG

Hi,

I think you've done an excellent job on the analysis. However, based upon my 2003, NHW11 Prius performance compared to yours:
Quote:
Originally Posted by gpsman1 View Post
Okay, here are my findings so far. Do these sound reasonable?
. . .
800 miles @ 75 miles per hour and 36 MPG = 22.2 gallons PriusII
800 miles @ 70 miles per hour and 45 MPG = 17.8 gallons PriusII
800 miles @ 65 miles per hour and 50 MPG = 16.0 gallons PriusII
. . .
My data suggests the NHW11 performance would be:
  • 800 miles @ 75 miles per hour and 39 MPG = 20.5 gallons PriusI
  • 800 miles @ 70 miles per hour and 49 MPG = 16.3 gallons PriusI
  • 800 miles @ 65 miles per hour and 53 MPG = 15.1 gallons PriusI
I suspect the PriusII does no worse than my 2003, NHW11 PriusI, on the highway. I've assumed no AC on a standard day. It doesn't make a big difference but these are the numbers I drive by.

Excellent analysis and I'm glad you included the relative 'labor', the elapsed time including 1.5 hours of breaks. This is a very reasonable number and matches my practice.

Bob Wilson

.

Operation Iraqi Oil Freedom:

Automatic, stock, project car.

My
other 1500 cc car:

Automatic, stock, backup car.
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