Hey there, i have a 2000 ford focus. it's around 90000 miles.
i did tune up around 88000, new tires, oil change on every 5000, but i still get poor mpg.
it use up a full tank to run about 220 miles on highway. if i go 330 mile, i need to use one and a half tank of gas.
is it normal or a poor mpg, what is the main problem.