I thought we were supposed to undervalue the tank size, so since we're in an xA and the tank is supposedly 11.9, I went with 11 (though thinking back maybe I should have went with 10.5). I'm still working on my 2nd tank to retool the adjustment factor. (By my calcs, earliest I can refuel is in Aug)
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My 5 pillars of fuel efficiency:- driving style
- aerodynamics
- tires
- weight reduction
- engine maintenance
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