View Single Post
Old 01-07-2010, 10:36 AM   #422 (permalink)
Christ
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
You also have to remember that the difference noted between 45mph and 55mph is ONLY at those speeds.

It doesn't account for speeding up, slowing down, etc. It's a steady state test, designed to find the difference between two sets of data. That's all.

If you're trying to measure the same difference on your daily commute, you're going to fail at it, and that's all there is to it.

The main point is that there is/was a 15% difference between 45MPH steady state, and 55MPH steady state, using the SGII or other instrumentation to determine instant economy data.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
The Following User Says Thank You to Christ For This Useful Post:
MetroMPG (01-07-2010)