Originally Posted by Striker_VII
So I just went on a 40 mile drive after gassing up with Shell V-Power 93 when I was nearly on empty. Due to slight traffic I set cruise control to 55 and left it their for the whole ride. Is this number correct? I know that the focus advertises 40 mpg but I don't know what the testing requirements for that number is. I am sure that driving 55 increased my mpg but is this picture accurate given my conditions?
I'm using the same Shell 93 gas. I trip tracked my tank and with mostly city driving, and having fun most of the time, I got 300 miles and 24 avg mpg out of the tank. I just filled it back up with the same gas and plan to try to drive more fuel efficiently. I reset the trip so I can track it again. I also want to try driving 40 miles at 55 mph and see if I get same result, however that is hard to do in a fun car like this >8)