Alright. I'm new to the forum and joined specifically to state my experience and see if anybody could tell me why this happened.
I started a new job a month ago that's about 75 miles from my house and wanted to get a car that got better gas mileage then my Chrysler 300c. I ended up getting a 2000 Ford Escort ZX2. The drive is 95% interstate and I'm in North Carolina so the speed limit is 70 MPH the majority of the way. I normally have to fill up every other day and I am getting anywhere from 29 - 30 MPG on a consistant basis. I don't know for sure but I think the tank size is somewhere between 11 and 12 gallons. Anyway, one thing I noticed is when my tank was full, it would seem like I was getting very good gas mileage. According to the gauge, I was getting about 100 miles on a quarter tank but it declined greatly from there. I would get about 175 - 185 on half a tank, maybe 250 on 3/4 of a tank, and my gas light was coming on around the 300 mile mark. My gas gauge seems to be a little finicky so I never thought much of it. However, today I decided to fill my car up after about 215 miles and just a little under half full. I was getting 35 MPG and some change!!!!
I'm glad but I do not know why. I was reading about gas evaporating and it evaporates more when the tank is less full however that is a drastic change. That is 5 more MPG and the only thing I changed was when I filled up my car. Does anybody have any explanation why this happened? Thanks in advance for the help.
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