Fuel cost — E85 vs petrol
−49%
Petrol · 100 km
3.2 L · €6.54
E85 · 100 km
3.9 L · €3.32
You save ≈ €3.22 every 100 km
— about €483 a year (over 15 000 km)
E85 uses ≈ +23% more litres, but the pump price
(€0.85/L vs €2.06/L) more than makes up for it.