Check it out, just a section of my log below. I have erased out the locations for privacy, but otherwise everything else is there. These are just a few out of hundreds of entries, and I do this for all my cars as I maintain them very well.
Actually, my last fillup lowered my average mileage to 15 mpg. And on this car I only average the last 15 fillups since I fill up about twice per week on average. I use a handheld GPS to monitor my actual mileage; if I went by the odometer I would actually only get 12 to 13 mpg since it is wildly inaccurate. I will be fixing it shortly.
I would like to know what you are putting in your tank in order to get 19 to 23 around town.
