Back when Gassavers was seperate, the fuel tracking app reported a percent above or below the combined EPA you were getting. Another site gave a percent of this combined number.
Fuelly does report the the whole number a person is exceeding or not these ratings. A percentage is more useful for when the time comes for replacing that car. Knowing what percent of the rating a person gets on their commute will give them an idea of what they should get when comparing other car models.
So, along with the list of other things, could we get that?
That is a good question.
On the car's page, underneath the log chart, is where the estimates are, with the potential savings bar for better fuel economy under that.
I just remember seeing a little button to add the estimates one day. Now I just threw together a couple of fake car entries, and now can't find that button. Can't find a way of editing or removing them from my car entry either.
It would be an interesting comparison. If "hypermiling" is defined as exceeding the "official rating", then we'll need to agree which fuel consumption numbers to use.
In the Australian test ADR 81/01 urban cycle the car averages 19km/h and is stationary for 30% of the 13 1/3 minutes. This gives hybrids a very low consumption number that can be very difficult to attain, even with hypermiling. A Gen III Prius has ADR 81/01 number of 3.7 and 3.9 LHK (64-60 mpg US)
Similarly, the Japanese JC08 mode test results are 30.4-32.6 km/l (3.3-3.0 LHK; 72-77 mpg US), which is OK for low-speed urban driving but very optimistic for inter-city driving.
UK lists 70.6 - 72.4 mpg(Imp) (4.0-3.9 LHK)
US lists 51 - 48 mpg(US) (4.6-4.9 LHK)
There's a start on the database.
There, that's every unit covered. Mods:DEFA SafeStart engine block heater, LED interior, position, door and number plate lights from Jaycar; Back Seat Buddy dog seat from Pet Avenue; ScanGauge-e Slogan: Tough of slogans and tough on the causes of slogans.