Actually that's a good point, I should have used ECO, especially as I like it for more precise throttle input. Wondering how much the difference would be.I regularly drive 167 miles to our second home.
If I keep my speed under 65 I can get 210 miles - at 70 to 75 I still get 200 miles. I set it to Eco mode.
Your observations show quite low speed impact BTW. I would expect 65 / 75 difference to be over 10%.