Hi from the UK:)
I can't understand the problem.
My 400h is 3 weeks old and I aam averaging 35 Miles per UK gallon when driving like my granny at around 40-45 mph.
When I criused between 55 - 60 and towing a car trailer with a medium load for 70 miles I got 29.5 mpg UK. I can easily get 33 -34 mpg (uk) when driving normally, mixed highway and town ! Maybe it is the weather! It is Autmn here now and I use the cheapest unleaded petrol :)
I am very pleased with it and it accelerates like a rocket when required (not very often!)
BR.
Billy
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Update from the UK: My workplace is 11 miles away on a country road withh very light traffic in North Yorkshire, which varies a lot in uphill and down hill gradients. It is somewhat lower (ASL) than my home. Today I drove very carefully both ways averaging 30 mph from 20 thru 30 even occasional 40 mph.
The outward 11 miles gave an average of 52.1 MPG !!! :) But the return trip of 12 miles ( I had to call for petrol) reduced it to 40.5 and the maneuvefring/ reversing for 5 mins or so in parking in the gargae reduced it to 39.5 mpg(UK).
I am very pleased with that :)
BR.
Billy
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I assume we are referring to Imperial Gallons here :) .
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Yes. You need to divide by 1.2 i guess. But for me that is excellent although you guys seem to get better results over there...