Tire Rack pits Integrity against Energy Saver, Ecopia and Fuel Max

[uart]

$121.00/tire

Thanks for the info.

BTW. If those fuel saving figures are true then you could save more than $200 fuel over the life of a set of tyres, so that's not bad value.

[krousdb]

Originally Posted by Boo

Thanks krousdb for letting everyone know.

Apples to apples road tests of tires are rare (Consumer Reports and TireRack seem to do the most). And this test not only tests a lot of tires that Prius owners are considering, but it's done on a Prius. Great stuff.

Below are the MPG results from the test and article (you should read the article for, among other things, braking and handling results):

Tire LineTest MPG*% vs. O.E.

Michelin Energy Saver A/S: 53.8 MPG +4.74%

Bridgestone Ecopia EP100: 53.5 MPG +4.12%

Yokohama dB Super E-Spec: 52.8 MPG +2.81%

Goodyear Assurance Fuel Max: 51.6 MPG +0.37%

Goodyear Integrity (O.E.): 51.4 MPG --

Michelin HydroEdge with Green X: 51.1 MPG -0.59%

Goodyear Assurance ComforTred: 50.0 MPG -2.64%

*Calculated based on GPS distances and ScanGage II recorded consumption (offset 6% for Prius Summer E10 regular grade fuel).

Doesn't the Gen III come with Ecopia EP 100's? So 4% of the 10% increase in fuel economy over the Gen II is due to the tires?

[Boo]

I believe that most of the 2010's with the 15" wheel that are being delivered in the US are being delivered with the Yokohama Avid S33, though a sizable minority are being delivered with the Bridgestone Ecopia EP20 (whatever that is ... some have said that it's the same as the Ecopia EP100):

What tires did you get on your 2010?

I have no idea what tires Toyota used in its EPA tests.

[pdxrose]

I have Bridgestone Ecopia - which tested best for wet braking - a good think in the PacNW. When the original survey came out for the Gen III, I responded that I was a happy woman because I love my Bridgestone Dueller HT tires on my CRV. I used to be a die hard Michelin fan but will not be purchasing that brand again after my Avalon (before CRV which was before P).

I had Ms on several cars and never got the wear life each set was rated and then on the Avalon there were always getting leaks (a couple that nobody could "find" for months) so I had to put in air at least once a month (drag for most girls : ). I have 22,000 miles on the CRV and the tires have never needed air - except perhaps when I had the recommended oil changes at 7,500 and 15,000 miles. These are much smaller profile tires so time will tell

[jay_man2]

Originally Posted by krousdb

Doesn't the Gen III come with Ecopia EP 100's? So 4% of the 10% increase in fuel economy over the Gen II is due to the tires?

They're EP20's (which mine has), so who knows compared to EP100's.

[SureValla]

Amazing, I wish this had come out 6 months ago when I was buying tires.

I see though only the ecopia and the Yokohama come in the exact Touring size though.

Good enough to sell me on the ecopia's when I hit 100k.

[pdxrose]

Originally Posted by jay_man2

They're EP20's (which mine has), so who knows compared to EP100's.

They should be the same. The EP20s are listed on Bridgestone's web site as OE and the EP100 aftermarket (they only go to 09). Bridgestone does the same with my Dueller HTs for my CRV .

Their description of EP100: "...an environmentally friendly tire designed to improve rolling resistance, which may help passenger cars achieve better gas mileage without sacrificing the smooth, quiet ride or reliable wet handling you have come to expect from Bridgestone tires." Whereas the site has no description for the EP20 besides "OE tire on select vehicles. See Sizes and Specifications for Original Equipment fitments."

Thus, for the testing it makes sense that they would have purchased EP100s....

[Boo]

Originally Posted by pdxrose

They should be the same. The EP20s are listed on Bridgestone's web site as OE and the EP100 aftermarket (they only go to 09). Bridgestone does the same with my Dueller HTs for my CRV .

Their description of EP100: "...an environmentally friendly tire designed to improve rolling resistance, which may help passenger cars achieve better gas mileage without sacrificing the smooth, quiet ride or reliable wet handling you have come to expect from Bridgestone tires." Whereas the site has no description for the EP20 besides "OE tire on select vehicles. See Sizes and Specifications for Original Equipment fitments."

Thus, for the testing it makes sense that they would have purchased EP100s....

Yes, but who knows for sure which tire they used for the EPA test.

[royrose]

Originally Posted by Boo

I believe that most of the 2010's with the 15" wheel that are being delivered in the US are being delivered with the Yokohama Avid S33.

So, does anybody know much about the Avid S33? I have Googled, but can't find much about them except prices.

[KK6PD]

Great post. I think its clear to me what my new tires will be. Now to find some lightweight wheels to dress "Baby" up!!!