After buying my used Ecamper last week I filled the tank and reset the trip. I kinda freaked out at 200 miles, I was just above 1/4 tank left. I popped into safeway to refuel and took about 9.6 gal to fill it. Using the iphone calculator I found I got 21.7 mpg. That about 65% city and 35% hwy with normal driving. Not aggressive but not babying the gas either. Kept RPMs under 3k mostly. I think thats pretty darn good for an Element with the Ecamper conversion. This time Im gonna let it run closer to empty and see how many miles I can get out of the tank.