I have a brand new leon fr 1.4tsi. Filled up tank fully last week. Drove 75 miles since. No bars have gone down yet (from the 8 bar meter). If im doing my math correct then i would be getting close to 600 miles from the full tank!
However the car is saying i will only get 360 miles until refuel.... which is 35mpg..... is this accurate?
I think it calculates miles till empty from your average prior...I remember my average since last refuel was around 45mpg ish...so when filled the tank up, right away, it was like 400 something miles till empty on range.
From fuel station (in London) in between till York (175 miles), the range canculated increased after perhaps 15-20 mins of highway driving since refuel (~70-75mph cruise control ~ 60mpg) flicked to range again, it went up to mid 500s.
So yes it's variable... the reverse was true as well, I went London to York to Leeds to London to Stansted airport and back to London, then fuel light came on around 520-530 miles mark...when I refuel then, it showed some crazy range...in 500s. Of course that tank only lasted 400 something, as did predominantly non motorway driving
. Range computer kept droping my range as average mpg plummeted after those long highway runs...