Consumer Reports gets only 67 mpg with Hymotion Prius

[cwerdna]

Originally Posted by bwilson4web

I just wish I knew their highway mileage route. I could then see if there is some way to replicate it in Alabama.

http://www.consumersunion.org/Oct_CR_Fuel_Economy.pdf doesn't have the route but says:

HIGHWAY MPG
Our tests. The highway tests are run on a specific section of
state Route 2 near our test facility in central Connecticut. Two
testers make eight 5-mile runs at a constant 65 mph. The tests are
run in both directions to limit the effects of wind and grade differences.
Each run is timed and limited to 4 minutes, 38 seconds. Total
test time is approximately 37 minutes.

[tochatihu]

These folks have a plug in fleet

Google.org

They subject the cars to 'average skill' driving (I guess), and average 57.6 mpg.

[sfvb]

I have a hard time believing that 187 lbs will result in a 5 mpg decrease in city driving.

[SageBrush]

Funny how so many of us read the same article, and came away with vastly different impressions. I thought "about twice the mpg with the hymotion upgrade than without. Yep, about what I expected."

Since I average about 70 mpg in my Prius in temperate weather, I would expect about 150 with the hymotion upgrade. I no more expect to get *their* driver's 67 mpg with the extra battery, than I get 34 mpg without it.