Because the drivetrain is several times more efficient, other loads have an outsized impact on mileage. The Model 3 is rated by EPA to be 131 MPGe. So yeah --

Because the drivetrain is several times more efficient, other loads have an outsized impact on mileage. The Model 3 is rated by EPA to be 131 MPGe. So yeah -- if your drivetrain is getting 131 MPG, your A/C that consumes the same amount of power is going to have a much larger proportional impact.