Dacia Duster TCe 100 4x2 Bi-Fuel LPG 10 month owner's review 

After 10 months and putting 14,600 miles into my first ever new car, my Duster LPG... I'm still loving it. 50mpg on petrol; 40 on LPG and at 72.9p per litre of LPG and filling up on £35 in a near 50 litre tank... that's bloody good.
Anyway, I'd wholeheartedly recommend the Bi-Fuel option. The Dacia reviews suggest over 700 miles on the two tanks... I'd calculate my current economy at 400 miles on LPG plus around 600 on the petrol... that's in the region on 1,000 miles on the two tanks...
You decide 👌😉