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Old 06-23-2008, 04:32 AM   #1 (permalink)
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Need help for EPA rating to correctly register my megane

Hi,

I introduce myself a week ago. I registered my scenic (vehicleid=838) and now I'm registering my megane (vehicleid=962) for which I'll soon have a first fuel log to enter.

The problem is to know the numbers I have to use for the EPA rating...

The megane is old and the FE is the old European test :
. Urban : 33.6mpg (7.0l/100)
. 90km/h (55.92mph) : 51.1mpg (4.6l/100)
. 120km/h (74.56mph) : 37.3mpg (6.3l/100)

Logically the "120km/h" test corresponds to your "EPA highway" while the "Urban" test corresponds to your "EPA city". If I keep the "90km/h" for your "EPA combined" then this one will be the bigest one which isn't logical.

Currently I exchanged the "90km/h" and the "120km/h" numbers, so I have :
. EPA city 33 mpg(US)
. EPA highway 51 mpg(US)
. EPA combined 37 mpg(US)
which is wrong because European highways are above 120km/h : 130km/h in France.

How can I estimate the "EPA combined" from "EPA highway" and "EPA city" ?
The average is giving 6.65l/100 = 35.3mpg.

Anyway, I will certainly be over 38mpg for the current tank while I was under 33mpg before hypermiling :-)

Thanks in advance,

Denis.

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Old 06-23-2008, 10:08 AM   #2 (permalink)
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If your highway speeds are 120 km/h then use that at the highway EPA and use the urban for city EPA. Throw out the 90 km/h and use an average of the urban and 120 rating for the combined EPA. That seems to be most accurate in accordance with what you got and are now getting.
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Old 06-23-2008, 03:39 PM   #3 (permalink)
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megane - '97 renault megane classic
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Thanks. I updated megane's EPA ratings to 33, 35 & 37mpg.

I'm currently at 850km and the "empty tank" LED is always off, so I will achieve better than 40mpg :-) this is 14% better than that EPAcombined (745 km for 50l) and 21% better than what I think I was doing (700 km).

Denis.
__________________
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$


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Old 06-30-2008, 11:21 AM   #4 (permalink)
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Join Date: Jun 2008
Location: Toulouse, France
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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
missed the 40mpg but proud enough for the result

Quote:
Originally Posted by groar View Post
I'm currently at 850km and the "empty tank" LED is always off, so I will achieve better than 40mpg :-) this is 14% better than that EPAcombined (745 km for 50l) and 21% better than what I think I was doing (700 km).
It took time because I didn't drive a lot last weeks...
Isn't it the best way to hypermile ? ;-)

Finally the "empty tank" LED switched on at 891km (554m) and I refueled at 911km (566m). What is strange is that usually the LED is on before the 50l (13.2g) and I refueled 54l (14.3g).

Denis.
__________________
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$


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Old 06-30-2008, 12:30 PM   #5 (permalink)
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Congratulations on the nice fill up!

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