What brand tires do you have on your Gen5?

have 77k miles (not kidding) on that toyo extensa a/s II (came stock on the car) 195/60R17 with 4/32nd left.

considering the hankook sinergy xp just out of curiosity, even those these toyos are ridiculously long lasting, quiet relatively and just fine.

so-cal weather, driving maybe 60% city 40% freeway. average psi for the life of the tires about 37 cold

have also seen the Nexen, besides the hankook I'm interested in for the LE 5th gen 17", anyone else have experiences with either of these specifically on our car?

can we separate/have two dedicated threads for tire sizes, one for the 17" and one for the 19"? pwease?

 

Tires supplied to a car manufacturer may not be exactly the same as that model bought off the shelf.

 

absolutely.

typically the OE is much lower quality/lasting than the off the shelf version, right?

but in this case, toyo, newer tire sizing maybe? there is no OE version, just one Extensa a/s II tire? and it happens to also be used as an OE 17" option for the LE 5th gen prius? just to confirm, if anyone can. maybe works for toyo possibly

wondering if the off the shelf version of this toyo is also the exact same as the OE in this rare case, perhaps?

and that's why this "OE" toyo has delivered well over the 75k that the off the shelf version claims?

hmm

 

Urban myth.

As long as all the specs on the sidewall are the same (load index etc.), they are the same tire.

Toyo, Dunlop, etc. make both ISO-metric and P-metric versions of a tire. Perhaps that’s what people are referring to. In fact, Toyota dealers also sell both versions sometimes.

Nevertheless, if the off-the-shelf-sourced tire is also ISO-metric like the OEM-sourced tire and they have the same specs, they are the same tire. There is no such thing as an OEM-version.

On that note, I purchased tires twice online from different companies, and they mistakenly sent me the P-metric versions with different load index and different cold inflation pressure. I returned them and got the ISO-metric version from the dealer.

 

thanks for the clarity, Gokhan

 

Here are the P-metric version of the tires they mistakenly sent me. They have an 89S load/speed rating and 44 psi cold tire inflation pressure vs. 91S and 51 psi on the ISO-metric version. I refused the delivery and got a full refund. Dunlop discontinued these tires (both versions) three years ago, and I decided to get four ISO-metric ones from the dealer before they were gone and kept the three good tires I had, which had worn only 1 mm after 45,000 miles. The dealer had a “get one for $1 if you by three” deal with two years free replacement; so, it wasn’t a bad deal.

 

You are doing great with the stock Toyos!

I have the same tire (17” made in Japan Extensa a/s II) on my Canadian 2024 SE Prime but, the Treadwear rating is 300 - you mentioned a rating of 700. Based on the wear over the first 20,000 miles I’m expecting my tires to be down to 3/32” at 50,000 miles which I was happy with until I read your post. Maybe it’s a different tire compound for Canada? I’m running 2 psi over recommended pressure.

 

That is the key point. With a production run in the thousands, a car manufacturer can get a tire identical in all ways to what a tire company sells to the public, except in the tread depth/tread wear rating.

With a shallower tread depth, the tread blocks squirm less as the tire is rolling. That is less energy lost to waste heat. Getting supplied with a tire with less tread means the car company can use those tires for fuel economy and emission testing.

I get about 50k to 60k miles on the tires on a new car. Roads and driving style will play a part in wear rate. Also possible a supply snafu led to Toyota getting the aftermarket version sent to the factory.

 

hmm, yeah it is confusing to me too. definitely happy with the tires!

Gokhan makes some great points. I'm going to have to make sure that if I go with the toyos again, the info on the side sof the tires are the same with the replacements, as far as I understand. hmm

 

Confirmation of OE Status

The SKU 148680 for the 195/60R17 Toyo Extensa A/S II, as listed on major retailer websites (e.g., Big Brand Tires, Walmart), has been confirmed with Toyo Tires customer service to be the specific Original Equipment (OE) tire manufactured exclusively for Toyota.

• Key Distinction: Toyo Tires' standard aftermarket catalog does not include the Extensa A/S II in the 195/60R17 size.

Performance vs. Specifications
The OE tire (SKU 148680) is officially characterized by:

• A relatively low UTQG rating.
• No standard manufacturer's tread life warranty?

However, my personal experience with this specific set has been exceptionally positive:

• Current Mileage: 77,000 miles achieved.
• Condition: Even wear across all tires.
• Remaining Tread: Approximately 4/32" remaining.

maybe that was already clear to some people, but I was confused about what was what, so decided to call Toyo.

 

That is exactly what I mean. There are no OEM vs. aftermarket versions of the same tire. Toyo sometimes makes both ISO-metric and P-metric versions for a tire model, the P-metric version usually be sold as the aftermarket version. The Toyota dealer once installed a P-metric Toyo on my Gen 4, which I had removed and replaced with an ISO-metric one.

 

Again, usually the distinction is P-metric vs. ISO-metric. They will have the same model name but different load, pressure, treadwear specs and a P in front of the size designation for P-metric.

Toyo Extensa and Dunlop Enasave both come in ISO-metric and P-metric versions. With Toyo Extensa, it is easier to distinguish (A29 vs. A 41) in the name, but Dunlop Enasave has the same name. The P-metric version has a higher treadwear rating, but I like the ISO-metric version, which is the OEM tire.

 

Also, what does that really mean? You can get this exact tire from TireRack.

https://www.tirerack.com/tires/tires.jsp?tireMake=Toyo&tireModel=Extensa+A%2FS+II+B&partnum=96HR7EAS2B&vehicleSearch=false&fromCompare1=yes

I wouldn’t worry about the treadwear rating much. My OEM ISO-metric Dunlop tires have a very low treadwear rating, too, but they wore only 1 mm in 45,000 miles. P-metric tires (perhaps what people call “aftermarket” or “off-the-shelf” tires) tend to have higher treadwear ratings, but I like ISO-metric tires, which are the world standard and have higher quality and better handling due to their rounder profile as well as a higher cold inflation pressure and load capability.

 

There's no "P" on the Ecopias on my '26 LE. 44 psi max. High treadwear number, but can't recall.