Mileage drop with new tires

Slightly off-topic, but IIRC, Michelin Energy Saver A/S was all the rage in Gen3 times as the most Eco. Is it still the gold standard or has it been supplanted by something else?

 

I see these aren't offered in 195/65R15 anymore. Only in 175/65R15 for 15" rims.

 

According to TireRack specs the Nanoenergy A29s I believe you had are 1 lb lighter than the Ecopia EP422 Plus 640 tires you got, 17 lbs vs 18 lbs.

That's approx 5.88% more per tire. Enkei claims each lb of unsprung weight is equivalent to 20 lbs sprung weight and if accepted that's equivalent to you gaining 80 lbs overnight...

moto g(7) power ?

 

I want extremely low rolling resistance AND the lowest noise possible. Today's new issue of Consumer reports surprised me with a Kumho tire (Kumho Solus TA11) with the highest ratings for both criteria. The Kumhos edged out the Ecopias...

 

Thank you.
Exactly the information I need.
Looks like either would be a good choice.

 

Well at least we can somewhat confirm the issue with your swap. I got the tire weights from TireRack.com, after sorting out which version you got. The Treadwear ratings are not the same so I was able to match up the Costco version treadwear with the correct version on the TireRack website then compared the weights. Toyota OEM wheels are very heavy so you can gain back some by finding the lightest wheels you can to purchase. I replaced the wheels on the Prius v with Enkei RPF01 which saved a decent amount of weight. (I could barely lift the original wheels to put them into the Enkei boxes).... There are even lighter wheels from Volk Racing, (I'm going to get some CE28 Club Racers for my iQ to counter some of the added weight of runflats). But these are even more pricey. If you can swap the tires with lighter ones that would be the best because the tire is the outermost portion of the wheel and the worst place to add weight, with respect to moment of inertia.

moto g(7) power ?

 

These are Ecopia EP422 Plus? FWIW, I found Ecopia EP20 delivered excellent mpg, directly after install.

 

If I'm ever shopping 15" all seasons for our 3rd gen, I might go with Michelin Defender (with whatever suffix it's currently lumbered with).

I believe they're not leader of the pack for mpg, but they're not bad, they're very good for tread life and have decent road manners.

But yeah if mpg is paramount, going with what served you well in past is a safe bet.

Just be sure you are in fact getting the same tire. As an example, some Prius come from the factory with an Ecopia EP 422 Plus, that's made in Japan. If you look to replace with same in North America you'll typically find two offerings, one made in the States and one in Mexico. No problem there, except all 3 of these tire are distinct, with different tread patterns, wear index, dimensions.

 

I found EP20 DID get louder, as the miles accumulate.

 

The funny thing is that PP also comes with Ecopia 422+ as OEM tires. My previous 2017 PP came with Dunlop Enasave. Now my 2020 PP has OEM Ecopia 422+. I do not see much difference in EV miles or gas mileage in those two cars.

 

@High Mileage, I don’t know if Discount Tire/America’s Tire would take tires back after 1k miles, but they do have a pretty liberal return policy. Something to consider for next time I guess...

 

Your "sample" may be too small to draw any solid conclusions from.
I hope so cause I just ordered a set.
Consumer Reports rated them high for comfort AND mileage.

A couple of more months should tell the story but other factors might be involved too.
Colder weather might have an impact.

 

I went to TireRack.com to take a look at the Dunlop Enasave 01 A/S specs. Low and behold there are two versions! Was going to ask for more details BUT they both are listed at ONLY 16 lbs. From 17 to 18 is significant but 16 to 18 is huge!

Did you get even better MPGs than with the Toyos?

moto g(7) power ?

 

How reliable are Consumer Reports' reviews? I'd go by TireRack's reviews over CR's.

TireRack rates the Kumho TA31 (which were brand new on our used Prius Four) higher than the TA11 -- and both of them far down their list of recommendations for a 2015 Prius.

 

In my opinion......at least as good as "reviews" posted by individuals in places like this.

And since when does ANYBODY publish tire recommendations for a specific model and year of vehicle ??
Except maybe off-road or "specialty" vehicles ?

Then, the "best" tire for anyone on any vehicle depends a LOT or what your primary objective IS.
Different strokes...........