With my commute, I have to fill-up every other day. When it gets parked for the night...it’s generally on a full tank (night before day one of that tank) or its on half a tank. We have had some interesting temperature fluctuations though. It’ll be in the 20’s in the morning and 50’s in the afternoon one day and in the 50’s in the morning and 60’s in the afternoon the next. Despite the convenience of my regular fill up spot (have to go right past it on my way home each evening), I’ll have to try another gas station for a month or so and see if that makes a difference.