Toyo AT3 EV 33” Tires Only a ~3% Range Hit vs OEM 32”

[cowboys1870]

My brand new Toyo AT3 EV 33” tires only used 3-5% more energy than 32” OEM Michelins.

Roughly 2.01 mi/kWh vs 1.95 mi/kWh

I drove the same 39 mile loop at 70mph with the HVAC set to 75° and speed set by GPS app.

Before and after each test, I charged to 70% displayed on the same Supercharger to help me gauge consumption. I started and ended at the same spot, with the same starting SoC. 94°F out, some wind.

I did the OEM Michelin 275/65R18 with 49k mi on them first, then the new today Toyo AT3 EV P275/70R18.

Also, my last 2,000+ miles on the OEM 32” Michelins averaged 2.3mi/kWh. The last 140 miles in the new Toyo 33”s also averaged 2.3mi/kWh.

I am very pleased with these numbers, and expect the Toyos will notice a bit as they wear in.

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[CD4TNF]

Ride quality?
Noise?

Thanks for the testing and report. Good to know we can get get AT tires without sacrifice range.

 

[cowboys1870]

Ride quality?
Noise?

Thanks for the testing and report. Good to know we can get get AT tires without sacrifice range.

I would say the ride is about the same, perhaps a touch stiffer. These are the P rated 116T load rating, so not the stiff LT.

For sure more tire noise at 50mph on smooth roads, but wind noise takes over at 70+ mph and makes the tire noise unnoticeable.

 

[CD4TNF]

Neat thanks! Sounds like Toyo did a great job.

 

[Madtroniks]

Thanks for the detailed write-up. I run the Toyo AT3 EV in 34" on my Rivian and I also did not notice too much change in efficiency.

 

[Mal106]

Did you have to do any compensation for tire diameter?

 

[cowboys1870]

Did you have to do any compensation for tire diameter?

I did change the tire size in FORScan.

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