When on coming home the first thing you say to your wife is some number, and she says: "Hmpf, you've done better than that".
This happened to me this evening. I told my better half "3.9" (litres per 100 km by the car computer for the last trip, that's about 63 MPG) and sure she knew I've done better(*).
I know I'm an ecomodder and she does too.
(*) PM It so depends on circumstances, it's not fair like this
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gmeter or 0.13 Mmile.
For confirmation go to people just like you.
For education go to people unlike yourself.