How accurate is the distance to empty
For quite some time now I have this question in my mind.
The modern day technology has got us a new calculation meter that shows the distance to zero or empty in the car. I have noticed this in Tata Manza and now the new Fabia.
My question is how accurate and how dependable is the distance to zero. Last week I filled in 15 litres of petrol in the new Fabia and as soon as the tank was filled it showed me 220 Kms to zero. I drove around 70 kms in the city and suddenly this meter shows 100 kms to zero.
I do not know how dependable is this ?
Experts advise please.