Today at a local gas station, I heard it was only 2.85 for 87 so I jumped at the chance

and I only had 112.2 miles on the tank, but I thought why not fill up anyways. Well, I only got 1.633 gallons in :? Which means 68.7 mpg... :jawdrop: how is this possible? Is it off because I didn't drive far? The nozzle kept clicking off, I must have tried filling up about 5 more times but it would put about 20 more cents in and stop again. Whats the deal? :O