I'm retired too and I don't drive much because there is so much to do in my community that I can walk to and I barely need to leave. I also live just a few blocks from several groceries, drug stores, shops, etc. I noticed that in the last three weeks I used less than a quarter tank of gas.
I'm driving a 2009 Ford Escape with 180K miles on it. It starts up fine and drives fine every time.