Very impressed with gas mileage

While I will certainly agree it is entirely possible to do it on one trip, that is not the correct way to figure fuel mileage. Fuel mileage is calculated over time with many different trips and then averaged together. You cannot just take one trip and decide you're getting 28MPG. That's not how it works.
What planet are you living on ? My average miles per gallon that particular trip was 27.8 miles per gallon. There are no exceptions or variables for that particular trip. That is how it works. Based on your philosophy. People can’t estimate fuel mileage accurately until a vehicle has 200k miles and is being crushed. I simply stated that I traveled 156 miles and that miles per gallon is a very good indication what the fuel mileage is for my car. Would other trips consume better or worst average miles per gallon ? Absolutely, more or less by a few miles per gallon
at the most. If you’re dissecting my outcome. To be honest the car is actually a little more economical than that outcome. As I traveled this trip over mountainous terrain. A lot of drifting. However, as much drifting as I did on this trip. I climbed just as many hills as I drifted down. And I took the same exact route returning. I’m willing to bet, if I were to travel a less mountainous route. I could easily hit 30 mpg traveling the same distance. I’m 47 years old, I know exactly how mpg variables come into play and I also understand more miles calculated would be a better indication. If any of you are calling me a liar. I’ll bet any of you, any amount of money. I can prove time and time again to average a minimum of 25 mpg regardless the circumstances.