Eco mode worse MPG?!?!
Turned on ECO mode when I purchased a '23 RTL (cuz I'm a cheapskate!) and left it on for ~6 months, happily checking in w/ 22.5-23 mpg on my very regular commute up/down a mountain pass, freeway speeds + some city driving throughout the day. I'm a very regular 400 miles/week.
About a month ago, from a post on Reddit informing that ECO gives you diminished AC performance (and 100 degree days in SLC), I turned off ECO and did indeed have a bit more oomph from the cooling system in addition to a peppier driving experience.
Here's the part I did not expect: MPG went immediately to 25 after that. I'm 4 weeks in and I guess the ECO mode is dead to me now.
Tangent/sidenote: my digital MPG is ALWAYS ~+2 MPG from what the pump says. My last Ridgeline was exactly the same, overstating MPG by ~+2. YMMV. Literally.