View Single Post
Old 07-04-2009, 11:49 AM   #194 (permalink)
NeilBlanchard
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,892

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 3,440
Thanked 2,921 Times in 1,830 Posts
Hi,

I can tell in the coasting that it is better. My high last summer was 47.4mpg (IIRC) and my 90-day average was 46+ at the peak. I had just 1 (or 2?) tanks over 500 miles -- 509 was my best.

This year, I've added the smooth wheel covers and I have my tires up to 44PSI (vs 39PSI last year) and I've added the partial front wheel fairings -- and installed the video mirrors, and my high is 51.1, and so far my 90-day average is ~48.3mpg. And a majority of tanks are over 500 miles, with the best at 542! It has been unusually cool and rainy this year, and I'm still extending my mileage as I become more accustomed to the better coasting.

So, an ~7.5% improvement in the high MPG, an ~4% improvement in the 90-day average, and a ~6.5% increase in the tank distance, is decent -- though I too, thought that I would fly past 50mpg average.

I do think that I am (severely?) limited by the 4.31:1 final drive on the xA, and as soon as I go over the 100K limit of my extended warranty, and when/if I can afford it, I'll have a ~3.56:1 (or possibly the 3.72:1) final drive installed. ALL of the other models that Toyota make with this same 1.5L drive train (Echo, Spectrum, xB, Yaris...) have one of the higher ratio final drive; most of them have the ~3.56:1. This would be a 17.5% drop in my RPM's and would surely give me a big improvement in the FE.
__________________
Sincerely, Neil

http://neilblanchard.blogspot.com/
  Reply With Quote
The Following User Says Thank You to NeilBlanchard For This Useful Post:
toxshox (08-23-2010)