“Excuse me I was just getting over the shock of paying $120 to fill up my pickup”
Your tank should never get near empty when gas prices are rising. You should fill up at half a tank or sooner and store the (cheaper gas than tomorrow) in your tank. Over time it makes a difference, and the bigger your tank the better you can do. I wish I had a 300 gallon storage tank, I’d fill it too.
Two other advantages of topping up:
The fuel keeps the fuel pump cool (electric pump mounted in the tank), and running low in hot weather is not good for the pump.
Water vapor is more likely to freeze in very cold weather in a mostly empty tank.