Today, in an attempt to answer for myself whether Econ mode really does all that much, I did an experiment a little different than running a tank in Econ, then one without. I did as close to identical 10 mile runs as I could on a limited access highway. I entered the highway, accelerated to 70 MPH, set cruise control, then reset trip B at the first mile marker I came to. This mile marker was my start point for both runs so as to have identical terrain for both trips. Yes, after the first trip I went back and did it over without Econ. Fortunately, for both runs I didn't have to slow down for traffic. Both runs were with A/C off, and ambient temp 68-69 degrees with a slight head wind near as I could tell from the one flag I saw. Bottom line was I tried to keep conditions for both runs identical. I got 32.7 MPG with Econ and 32.4 without. Then I filled up to run one tank with Econ and the next without.
Which method do you guys think is the more accurate?
One tip for anyone wanting to try my method: I learned you can only hold the reset knob for the trip meter for a few seconds to reset it. If you hold it longer, about 5-10 seconds, it will continue on like you didn't even push it.
Which method do you guys think is the more accurate?
One tip for anyone wanting to try my method: I learned you can only hold the reset knob for the trip meter for a few seconds to reset it. If you hold it longer, about 5-10 seconds, it will continue on like you didn't even push it.