These tires kill mileage

Interesting... I bought some Michelin Defender A/S 195 /65 R15 91T SL BSW - 90,000 mileage warranty, but at Americas Tire.

First few weeks I was shocked to see that mpg fell to 44 from 49, so shocked that I was thinking about taking them back and grabbing the Goodyear's, that had a better rating. My mpg has floated around 46-48 after the "break in period", depending on how I drive, sometimes hard sometimes slow. A reviewer mentioned that he heard tire noise at around 30k, I was weary of that but have not heard anything and I am about 25k with about 6 mos into them (rideshare thats why).

 

And so you aren't going to mention in this thread all of those OTHER symptoms you are having.......that appeared around the same time the tires were changed ????

 

Bought mine at COSTCO also. Didn't know that I needed special tires. MPG went from 38 to 30-33.Will get special tires next time

 

Is it just the Gen2 or Gen3 Prius that has a mpg reduction when installing new tires?

I just got new Michelin Premier A/S for my 2016 Space Shuttle. I've driven through a full tank of gas now, and have not noticed any negative reduction in miles per gallon. I'm holding steady at 61 mpg on the display (57 calculated). Tires are inflated just 3 pounds over factory specs. The ride and handling is precise, smooth and comfortable.

I'm zipping around, slightly above the speed limit, and using the power mode most of the time. Having fun. I couldn't be happier with the Michelin's.

 

No. It is ANY car when you switch from tires with low rolling resistance to ones with high(er) rolling resistance.

 

Thanks, Sam.

I didn't place a priority on getting tires that are "low rolling resistance." I would rather have a good handling tire, good wet & dry traction, comfort, and a treadwear warranty of somewhere around 50,000? (The Premier tires are 65,000).

I've been driving my Prius for close to 18 months, and it has been fantastic. The wonderful thing is, I no longer have to concern myself with gas mileage, and I rarely even check it anymore. If I took a 5 mpg hit, it wouldn't even concern me. Getting anything over 40 miles per gallon is like a miracle, for me. I used to drive some gas-sucking vehicles.

I know it sounds strange, but the least of my concerns is gas mileage. After all, I'm driving a Prius! It's great. And the new Michelin's just made it better.
(The Toyo tires pretty much sucked).

 

My 2010 Prius Toyo's lasted 37K miles. Replaced with Defenders which lasted 86K miles. Replaced those again with Defenders. Wife's 2014 Corolla factories (?) lasted 32K miles. Replaced them with Premiers because the did not make Defenders that size. Had purchase of Mom's used 2012 Rav4 Limited contingent on new Defenders installed. Son's 2015 Prius Toyo's lasted 35K miles. Just replaced them with Defenders. Infer what you will, but I am a Mechanic.

 

I'm a believer in Michelins.

BUT a lot of years ago, I heard good things about a model that had something like an 80,000 wear warranty so I put a set on my Caddy STS. They turned out to be near to the WORST tires I've ever had . Rode like rocks and had "twitchy" handling at speed.
I don't remember the model name but Michelin doesn't make them anymore. I wonder why.

 

Like any product, most manufactures make a range of products to reach different market shares. At present I think Toyota is best overall, but they have and had some duds too.

 

I've always noticed a drop in mileage with new tires, that is except Bridgestone ECOPIA. I remember my early research into increasing the mileage rating to get more miles out of a set of tires, finding higher mileage tires are harder rubber, this can make them wear slower because the decrease in traction isn't noticeable, with a Prius, it is measurable, we get more regeneration from tires that don't slip on the road. This is why the Prius Engineering team selected Goodyear Integrity series for the US as they are relatively sticky, though less durable than some of the higher mileage rated tires (Pirelli) . I hope that idea makes sense to others out there. If it does consider keeping your shocks / struts in top condition and you will get a quieter smoother high mileage ride for the same reason.


iPhone ?