The fuel tank capacity of my '15 CR-V is 15.3 gallons according to specs. Today while out and about my fuel gauge was nearing empty. Finally the yellow low fuel light/icon came on. I checked the 'range' miles and I knew from that I could reach my destination. At my favorite gas station near home, a Phillips 66, I pulled in to fill up the tank. Now the range mileage was at 1 mile! I always fill up until the pump nozzle clicks off and then stop. My tank took in 13.6 gallons of fuel. The math tells me that I still had a reserve of 1.7 gallons of fuel remaining in the tank even though the range indicated only 1 mile until empty. That means I could have driven a total of 57 more miles (assuming 30 mpg) until the CR-V came to a complete shut-down. I really did not intend to wait even this long until I refueled today. However, it is useful information to know that if the chips are down I could have driven up to 57 miles further. In an emergency this could be useful knowledge. Most usually I top-off the tank every time it is at the half full/empty mark.