i would very very seriously doubt it, how did he calculate that? run the gas tank til empty, fill it up and divide the miles by 22 gallon tank? the fuel gauge in the vx is notoriously inaccurate, the only true way to check your fuel economy is to fill your tank completely (dont put extra in after the pump stops on its own) reset your trip odometer, drive around, next time you fill up, fill it up until thet pump stops on its own, dont put any more in, look on the pump to see how many gallons you put in, divide the number of miles on your trip odometer by the number of gallons u put in (140 miles divided by 11.6gallons = 12.06 mpg) sorry if this is just telling you what you already know, i just like to explain things fully

i thought i was getting like 22mpg for awhile.. turns out the scangauge i was using to calculate it was set wrong.. i was actually around 16mpg