View Single Post
Old 06-13-2010, 05:43 PM   #6 (permalink)
groar
X-Frenchy: very
 
groar's Avatar
 
Join Date: Jun 2008
Location: Toulouse, France
Posts: 595

scenic - '01 renault scenic
90 day: 43.09 mpg (US)

megane - '97 renault megane classic
Diesel
90 day: 72.53 mpg (US)

dennisius - '06 Toyota Prius
Team Toyota
90 day: 69.27 mpg (US)
Thanks: 9
Thanked 34 Times in 23 Posts
Quote:
Originally Posted by jimepting View Post
2. If there are any hills of any degree, it is virtually impossible to maintain a constant 55 MPH and lean burn, therefore it seems that the best course would be to target a roundtrip average of 54 MPH, allowing a slight deterioration for the turn-around. This method would allow the speed to drift up and down by about 4-5 MPH while maintaining the 54 MPH trip average. I have been monitoring the trip average by use of a Scangauge.
In Scenic, which is showing real time fuel consumption, I can see that a very light change on the right foot can change the FE by 15% (10% is easy) and change the speed by only 1-2 mph. This is a technique I do use, noticeably on the highway or whenever I'm at a too high speed to pulse & coast.

If I had a cruise control and a real time fuel consumption in Megane then I would use them to test my mods. Currently I'm using Coast Down Testing but I can see that another car or a light change in the slope can influence the deceleration. I have the feeling that the effect is higher on the FE.

Denis.

PS Anyway, what ever the method used, I wish you good results. I'm often frustrated to not be able to tell by how much each mod is improving my car as I have more and more the feeling that my butt-o-meter tells me what I want to hear. Being able to reply to other people with numbers (other than consumption in daily commutes) is also important.
__________________
Save money & CO2 at home : http://ecorenovator.org/
Created and managed by the creators of http://ecomodder.com/
---
Earth and health are priceless, so are kilotank and AT-PZEV
Best Mégane tank: 1268.9mi @ 77.847 MPG(US)
2008/06-2011/10 saving:
  • 5725.5 kg CO2 (5342.6+382.9)
  • Diesel / Money: 42.17% = 2446.25€ = 3357.26$


---
megane : thread - kill switch.
  Reply With Quote