Cold Weather and Winter Tires

[Junkyard Dog]

In the following video, a man uses his extreme summer tires in 24 degree Fahrenheit weather (-4.4° C) and does some panic braking tests.

Wow, it takes a long time to stop, way longer than it takes in the summer with these same summer tires.

It is true. Summer tires are hard like hockey pucks and lose a lot of grip when the temperature drops below freezing.

It is a huge increase. Be very careful in 24 degree weather with summer tires. You need a lot of room to stop.

This is a very significant increase in stopping distance, and you can actually see the car using antilock trying to get a grip and stop the vehicle.

Then he installs winter tires. He drives up in elevation and describes how great they are performing with traction in the ice and snow.

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[Junkyard Dog]

Then he goes back down in elevation to the same road as before does the same braking test with the winter tires on dry, cold asphalt. It is two degrees warmer at 26° Fahrenheit (-3.3° C).

Panic stop, ABS activated.

Let's see how much better they perform.

 

[Junkyard Dog]

I could not find one where he compares an all season. I am guessing it would do better than the winter tire, but that is just a guess. Would it do better than the summer tire?

The same YouTuber has a test with all 3 tires, but it is useless, because he tests only in the warm dry and wet (duh, the summer absolutely kicks the butt of the other two) and in snow and ice (again, duh, winter tire stops fastest, followed by all seasons, with summer tire coming in dead last).

No test in the cold and dry like the video above that includes an all season tire.

 

[jawsr101]

I noticed loss of traction in the mid to low 40s on summer P4s. I cannot imagine how bad it would get in below freezing. very few days below freezing in SC

 

[Junkyard Dog]

I noticed loss of traction in the mid to low 40s on summer P4s. I cannot imagine how bad it would get in below freezing. very few days below freezing in SC

In the interest of full disclosure, the summer tires in the video are not PS4S. I think they are a Continental 200 tread wear track/street tire, so probably worse off in freezing than the PS4S.

BUT

They still performed better than the winter tire on cold pavement.

Snow was a very different story, as I gave away above already.

 

[AZ_Ryan]

In the following video, a man uses his extreme summer tires in 24 degree Fahrenheit weather (-4.4° C) and does some panic braking tests.

Wow, it takes a long time to stop, way longer than it takes in the summer with these same summer tires.

It is true. Summer tires are hard like hockey pucks and lose a lot of grip when the temperature drops below freezing.

It is a huge increase. Be very careful in 24 degree weather with summer tires. You need a lot of room to stop.

This is a very significant increase in stopping distance, and you can actually see the car using antilock trying to get a grip and stop the vehicle.

Then he installs winter tires. He drives up in elevation and describes how great they are performing with traction in the ice and snow.

So you decided to post a new thread that repeats what literally everyone has been saying in the other two discussions as new information? Does that mean its finally starting to sink in?

 

[Junkyard Dog]

So you decided to post a new thread that repeats what literally everyone has been saying in the other two discussions as new information? Does that mean its finally starting to sink in?

You didn't watch the video, did you?

And yet your post was so confident and condescending.

 

[AZ_Ryan]

You didn't watch the video, did you?

And yet your post was so confident and condescending.

I dont need to watch a video to confirm what's already been talked about and understood in another thread by everyone except you.

Yes, breaking news, summer tires make braking distance longer. In rated news, the sky is blue and its gonna be dark tonight.

At least next time dont cut and paste my exact text from another thread and present it like new information just because you finally believe what people are telling you.

"It is true. Summer tires are hard like hockey pucks and lose a lot of grip when the temperature drops below freezing."

 

[Junkyard Dog]

That's not the point of the video, but, well, continue to ignore it and miss the point of this thread. The information is all there for you if you ever change your mind.

 

[Cz_Ziemniak]

Just gonna repeat it a final time, and this video sort of proves a point.

On dry pavement, in 40 degree weather, you wont have a Porsche magically slide into a curb leaving a parking lot unless you're doing something really stupid. I could care less what the tires are short of racing slicks. Commenting here because I cannot comment on the initial thread.

If you argue otherwise, you're wrong, simple as.

Does that mean you should use summer tires in the winter? No, obviously you shouldn't. But trying to blame the tires on a dude putting his car into a curb before he even got it into second gear is ridiculous. It wasn't even below freezing in said story. Either the story left out details, or its spun a certain way, or its just outright false.

Source: I literally drove in the snow yesterday and today, I know how different tires react in the cold, its not rocket science to deduce that traction and friction does not magically disappear all together in 40 degree weather.

 

[Junkyard Dog]

Alright, alright, let's not start that one in this thread. It went pages in the other.

 

[Cz_Ziemniak]

Alright, alright, let's not start that one in this thread. It went pages in the other.

hahahah, I'm done, I promise

 

[Junkyard Dog]

I wanted to make sure the value of this thread was not lost on those who have not watched the video to find out what happened. I am afraid my snarky first post mislead readers. That was not my intention. I intended to tease folks into watching the video.

So for those who have not watched it, the YouTuber compared a 200 tread wear extreme summer track/street type tire to a winter tire when the temperature was only 26° F.

The result: The summer tire performed far better than the winter tire.

It was not even close.

He also went up in elevation to snow, where, of course, the winter tire out performed the extreme 200 tread wear tire driving around in white stuff.

But on dry pavement, it was not even close. The "summer" tire outperformed the winter tire with an actual objective measurement performed several times for each tire, even though it was only 26° F.

He never identifies the tire.

Can anybody tell what it is?

It looks to me like the Falcon Azenis RT660, a track focused 200 tw tire.

"The Azenis RT660 is Falken's Extreme Performance Summer tire developed for motorsports enthusiasts, participants in track days, or any driver looking for competition-ready levels of dry traction and handling. The Azenis RT660 is designed to provide maximum performance in warm, dry to damp conditions, and like all Extreme Performance Summer tires, it is not intended to be serviced, stored, nor driven in near-and below-freezing temperatures, through snow or on ice."

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