Fuel cost — E85 vs petrol
−48%
Petrol · 100 km
3.4 L · €7.02
E85 · 100 km
4.3 L · €3.65
You save ≈ €3.37 every 100 km
— about €505 a year (over 15 000 km)
E85 uses ≈ +26% more litres, but the pump price
(€0.85/L vs €2.06/L) more than makes up for it.