What a Difference New Tires Make -- Michelin Pilot Sport All Season 4 tires

[intoMME]

I may have missed it but I did not see what tires you have put on and is the ride really better does it get rid of the bouncy motion that we've all experienced.

Hankook iON evo AS SUV tires. The ride is less bouncy, but still bouncy compared to my other cars. Definitely a notable improvement. Next step to work on the bounciness is improved dampers (not springs). Waiting for Koni or Bilstein to make dampers for our cars, as they are under-damped for sure. That is what my friend told me, who is a former race car driver and also a former Ford designer.

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[azerik]

I finally got mine put on today. My first impression was the the ride is smoother and quieter. I'm testing the to see if I get better range tomorrow. I'll also install the McGard lugs and wheel locks.

Curious to know if you’ve noticed a drop.

 

[npgeorgeuw]

Sorry to disagree with your personal experience, but IMO it is impossible there isn't a range penalty. These are not low rolling resistance tires, while the ones Ford put on are.

The penalty might be smaller for the GTPE because maybe those summer OEM tires are stickier than those on other models (such as the GT), but definitely there is a range hit. I doubt it is more than 10% and it might be closer to 5%, which could be hard to detect using the GOM.

BTW - using the GOM as validation probably isn't a very accurate way to verify the impact.

at cold temps the summer compounds might actually have less rolling resistance than an all season. We’ve seen similar trends with our MME GT PE at low temps. We knew the efficiency should be lower but it was actually a little better than stock but way worse 45+ degrees. That was with CC2s on the MME and PSAS4s on the EV6 GT. It’s the only explanation we could figure out and I know that other EV6 GT owners have experienced similar things when cold. I’m guessing they turn into round rocks at cold temps.

 

[azerik]

Funny story.

I bought this car used in January. When I bought it I didn't bother to look at the tire depth, just looked and said "those look newish" as they were no where near the wear bars.
This thread has me going down the PS4's, Ion EVO, or Hypertrac route. At the same time second guessing, changing the wheels. I figured hey, newish tires right? maybe Discount would take them in trade. So roll over to Discount. Tech guy comes out, scans the fronts 4/32's, rears 6/32's. The what? Ok great so I no now I have 1/2 the tire I though I had. All the more reason to replace as these turned out to be the OG tires from 2020.

 

[krafty81]

Looking for comments on new range with tires other than Primacy OEM tires.

 

[EVnewbie3000]

Not a tire expert at all so can somone explain to me how going with tires with slightly different measurements change the ride/efficiency?

Has anyone installed tires from costco? Curious to see what tires that are available from them people recommend

 

[heisnuts]

It's not only size,

Not a tire expert at all so can somone explain to me how going with tires with slightly different measurements change the ride/efficiency?

Has anyone installed tires from costco? Curious to see what tires that are available from them people recommend

It's not just the size that matters, the biggest factor is what is called rolling resistance. Tire manufactures are now making tires specifically for EVs with lower rolling resistance, but that can come with a trade off in other areas like grip, ride quality and treadwear life. You will find that tires are always a trade off between grip, treadwear life, road noise, and efficiency.

 

[CAL465]

It's not only size,

It's not just the size that matters, the biggest factor is what is called rolling resistance. Tire manufactures are now making tires specifically for EVs with lower rolling resistance, but that can come with a trade off in other areas like grip, ride quality and treadwear life. You will find that tires are always a trade off between grip, treadwear life, road noise, and efficiency.

The Hankook iON evo AS tires for EV cars rate high grip, ride and quality. Check them out.

https://www.hankooktire.com/us/en/tire/ion/evo-as.html

 

[mkhuffman]

The Hankook iON evo AS tires for EV cars rate high grip, ride and quality. Check them out.

https://www.hankooktire.com/us/en/tire/ion/evo-as.html

I am seriously considering these for when I need new tires. I am 26k now, and I may have another 10k left in the OEMs. Maybe.

 

[mkhuffman]

Not a tire expert at all so can somone explain to me how going with tires with slightly different measurements change the ride/efficiency?

Has anyone installed tires from costco? Curious to see what tires that are available from them people recommend

I second what @heisnuts posted. Size is only important to scrawny guys with mustaches who drive Corvettes. ?

Anyway, size might be relevant if you get a tire with a larger sidewall, as that will reduce rotational air resistance and increase efficiency at highway speeds. However, definitely rolling resistance is the biggest factor as far as tires go. The tires Ford put on our cars are low rolling resistance tires. So if you replace them with a tire that is not also designed for low rolling resistance, efficiency will drop 5% or more. Guaranteed.

If you replace the wheels with aftermarket wheels that are not aerodynamic, you can lose another 5% or more in efficiency. People who replace both the wheels and tires, and have posted their observations here on the forum have seen a 10% loss in efficiency. I am sure that is rounded, as the process for measuring efficiency isn't very well controlled, but it is pretty consistently what people observe. And it makes sense.

Personally, I cannot lose another 10% when my battery SoH is already almost 10% down. So anything I do needs to be as efficient as my OEM tires.

 

[Scooby24]

@mkhuffman this is going to be off topic but do you do a lot of DCFCing or run battery down real low? I'm curious why we are so far apart on our SoH when I have around 15k miles and am at 99%

 

[mkhuffman]

@mkhuffman this is going to be off topic but do you do a lot of DCFCing or run battery down real low? I'm curious why we are so far apart on our SoH when I have around 15k miles and am at 99%

I also would like to know the answer to your question regarding why the SoH is so low. But maybe it is just normal variation between cars. I do have 26k on mine.

It started dropping from 100% somewhere between 10k and 15k miles. I didn't notice it because I wasn't tracking it but I have OBD data from June 25, 2022, and I still had very close to 100% SoH. I was able to charge the car to 90.4 kWh and 99% SoCD, which is practically 100% SoH.

I have run it down really low less than five times. I usually charge to 90% unless I am going on a long drive, and then I charge to 100%. When I charge to 100% I usually do it right before leaving so the car doesn't sit very long at 100%.

Some months I don't DCFC at all. Some 4 or 5 times. I don't think I have ever DCF charged more than 6 times in a month. So it is almost all L2 charging. I charge to 90% and then when it drops below 80% from around town driving, I plug it back in. Sometimes the car sits all day and I only put a couple miles on it when I go to the gym.

So I don't know. Could keeping it near 90% most of the time be the reason? It shouldn't be, but maybe.

 

[Scooby24]

I also would like to know the answer to your question regarding why the SoH is so low. But maybe it is just normal variation between cars. I do have 26k on mine.

It started dropping from 100% somewhere between 10k and 15k miles. I didn't notice it because I wasn't tracking it but I have OBD data from June 25, 2022, and I still had very close to 100% SoH. I was able to charge the car to 90.4 kWh and 99% SoCD, which is practically 100% SoH.

I have run it down really low less than five times. I usually charge to 90% unless I am going on a long drive, and then I charge to 100%. When I charge to 100% I usually do it right before leaving so the car doesn't sit very long at 100%.

Some months I don't DCFC at all. Some 4 or 5 times. I don't think I have ever DCF charged more than 6 times in a month. So it is almost all L2 charging. I charge to 90% and then when it drops below 80% from around town driving, I plug it back in. Sometimes the car sits all day and I only put a couple miles on it when I go to the gym.

So I don't know. Could keeping it near 90% most of the time be the reason? It shouldn't be, but maybe.

What I think it interesting is I had 100% SoC until about 12k miles where I had never DCFC'd. Not even once. Then RIGHT after I DCFC the first time, I checked and I was suddenly at 99.5%....then the next time I charged 99%....and it's stayed at 99% since.

 

[mkhuffman]

What I think it interesting is I had 100% SoC until about 12k miles where I had never DCFC'd. Not even once. Then RIGHT after I DCFC the first time, I checked and I was suddenly at 99.5%....then the next time I charged 99%....and it's stayed at 99% since.

The timing of your decline is very similar to mine, mileage wise. Interesting.

 

[bruceski88]

Looking for comments on new range with tires other than Primacy OEM tires.

Michelin CC2 drop the range at least 15%, but performance in snow and ice is incredible

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