Just filled up with new Mobil "Synergy" gasoline

Yes, it stays in whatever drive mode you select. It won't change during on/off cycles.
My tires are only 3 to 4 lbs over.
No way to tell if the Synergy gas is the reason for the improvement in mpg. But I do hope it lives up to the claims of cleaning the engine well.














MERGED. SEEE REASON BELOW.


















My MPG is nothing compared to some of the Gen4 hyper-mile experts. I'm still in the minor leagues.
I pretty much just drive my Prius like a normal car, and mostly in the city.























MERGED. DON"T make 3 or more posts back to back to back, it is VERY poor forum etiquette.







My main ODO mpg is holding steady at 64.7. That an improvement over the 60.1 that I was stuck at in the "Pre-Synergy" days. (Yeah, I know, I'm still in the minor leagues. But that's doing normal driving, no hyper, AC on, and staying in PWR mode. I'm smiling all the way to the bank.)

My "Trip-A" full tank refill mpg, is staying between 62.7 and 64.8, depending on how impatient I am in my driving. Have no idea if the Synergy gas helps, or if it's because I quit buying Big Mac's.

Good enuf! I'm out.

 

I always try to accelerate smoothly and steadily. But all that extra pedal travel (in Eco mode) was giving me worse gas mileage. The gas engine stayed on longer while getting up to speed.

Look at all the money Toyota could save (and WE could save as buyers) if they would simplify things, and eliminate those two extra unnecessary drive modes. Just make the gas pedal "normal" and leave it at that. Make the gas pedal travel/response like any other Toyota car.

(but then Toyota would lose their gimmicky "Eco" marketing campaign, etc.)









MERGED. You have very poor forum etiquette. Do not make 2, 3, 4 or more posts back to back to back.

Agreed. I hated it after I only had the car for 2 weeks. I couldn't figure out "what's wrong with this weird gas pedal???"
















MERGED. You have very poor forum etiquette. Do not make 2, 3, 4 or more posts back to back to back.








Does Toyota think we are all naïve and ignorant? Easily fooled?

 

Hi bisco. In my Gen4, the gas pedal definitely feels harder to "push." (And also has further travel as you mentioned.) The tension and the pressure on the pedal is definitely higher in Eco, than in the other modes.
When I first used PWR mode, I barely touched the pedal and I was thrown back in the seat! It no longer does that, or maybe I am just accustomed to it.

Sometimes I will change drive modes on the fly… when I'm going about 40mph, and you can definitely feel the tension on the gas pedal change. Have you driven a Gen4 bisco? You might have fun if you go rent one.

 

Once I got accustomed to the PWR mode, the gas pedal felt no different than my Camry. I want my Prius to feel like I'm driving a Corvette. Now it does.

My gas pedal became less "touchy" the more I used the PWR mode. Now I don't even notice it.
I drive smoothly, normally, yet briskly, and my gas mileage has increased. I have fun and enjoy better mpg! WHAT'S NOT TO LIKE? I'm old, but I'm not dead!

The Prius is a great car, but I don't want to be a fuddy-duddy driver....

Think outside the box.

And try the great "Mobil Synergy" gas.

 

Another fill-up with Mobil Synergy gas. I drove this entire tank in the ECO mode.

603 miles driven. (Still had one full bar remaining on the gas gauge.)
Put in 9.8 gallons.
Trip-A display showed 62.4mpg.
Calculated was 61.5.

Just driving normally. No hyper-mile. Above the speed limit, trying to get away from the tailgaters. I'm very happy with the consistent mpg. The display and calculated were very close. If I had pulled out the nozzle at the first click, the calculated mpg would have exceeded the display! But I always squeeze in another buck of gas.

My mpg is pretty near the same in Eco, Normal, or PWR. I've learned how to manipulate the gas pedal in each different mode. It's been a fun car to drive so far. Even with all the various quirks and oddities and unusual sounds.