My 2015 ES with CVT has 6,700 miles on odometer with fuel economy of 46.8 MPG as shown in fuel economy log. Log includes every gallon placed in tank. Due to an error on my part early on in ownership of car, I accidentally reset the B MID miles to zero, but left fuel economy reading on the B MID as is. MID B reads 5,300 miles and 47.8MPG. Conclusion: The B MPG meter reads about 2% over actual fuel economy. I consider the MID gauge pretty accurate. Comments?