Hi Victor, welcome on-board.
The 2 documents to be read here are the "100+ Hypermiling Tips" to improve your driving and the "60+ Efficiency Mods" to improve your car. See the top of all pages.
Having better driving will give you more rewards. If you have an onboard computer then drive by looking at your instantaneous consumption, this is a great tool to improve your understanding of how your car works and your driving. You should be able to achieve 7.0 L/100
and at the opposite of us, you are getting into hotter weather now, which means a better FE
Denis.
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Save money & CO2 at home :
http://ecorenovator.org/ 
Created and managed by the creators of
http://ecomodder.com/ 
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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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megane :
thread -
kill switch.