I was probably the first Prius owner, 2010 model, to purchase
these tires about three years ago.
So far the tires have worn down to just about the wear bar indicators.
MPG's were an immediate increase of 2-4 mpg's over the original
Yoko Avid factory equipped tires. I probably saved $150-200 in fuel with
the increased mpg's.
I don't know if I will buy these again as there are so many more low rolling
resistant tires out there now as there was 3 years ago.
Overall the Energy Saver is a great tire and really does give you more
miles per gallon than I believe any other tire. I also keep all tires
inflated to 44 PSI (max sidewall pressure) and rotate every 7,500 miles
and all four tires are wearing perfectly even.
I will be getting another set of tires in the next 2-3 months.
I just don't know what I will get but will keep the Energy Saver
at the top of the list.