E85 economy is as follows
44 litres cost $53 today and netted me 238km, with fairly aggressive driving as per dat newfound power.
From this, we can deduce that 400km (my usual tank fill up point on 98 unleaded) would require ~74 litres at a cost of ~$89, which is only a few dollars more than I would spend on 98 to get the 400km (probably just over $80).
Be interesting to see if E85 and 98 sit on par for cost at my next fill up, given less aggressive / more daily driving with the current tank. But so far...
worthit.jpg