Are these tank averages or using the lie-o-meter? I had a 2019 sentra rental when my V6 accord got rear ended and it was significantly off. My experience with eco mode was that it just offered a visible guide on the dashboard to keep the engine below 1700 RPM, I don't think it changed the throttle response for mine. The fake shifting drove me crazy, so I tried to use very low throttle to stay in true CVT territory.
https://ecomodder.com/forum/showthre...way-37813.html