COLD PSS

[ImGoingPlaces]

how concerned should i be about these summer tires in the 20 degree weather im having rn ? Is it dangerous?

thanks

adam

[aerostar]

It's dangerous if there's snow on the ground.

Otherwise you'll just have the traction of a crappy all season tire. I wouldn't go WOT or take corners hard.

[nicknaz]

I personally would park the car until the temps get above freezing or switch over to winter tires

Not sure how insurance works in the USA since I've always had snow tires in the snow, but in germany if you get into an accident on summer tires in the winter you're automatically fully liable for being an idiot (they didn't put in exactly in those words when I took delivery of my F80 in March in Munich but did make it pretty clear on the consequences)

If its below 37F I think you should switch out the summer tires

[KZEVO]

I dont drive the car with summers if there is snow on the ground...if roads are dry i drive with caution as there is very limited grip in frigid temps. We only get snow couple times a year and i can manage without the Car as often as need be. If you live in the midwest, northeast or somewhere where snow is more likely then definitely get snow tires if u plan to drive the car. Not worth the risk.

[aerostar]

Originally Posted by nicknaz

I personally would park the car until the temps get above freezing or switch over to winter tires

Not sure how insurance works in the USA since I've always had snow tires in the snow, but in germany if you get into an accident on summer tires in the winter you're automatically fully liable for being an idiot (they didn't put in exactly in those words when I took delivery of my F80 in March in Munich but did make it pretty clear on the consequences)

If its below 37F I think you should switch out the summer tires

There's no such rule in the US.

There aren't many rules that harbor any sort of common sense in the US. But this is America, and so should you.

[Jockey]

Originally Posted by aerostar

There's no such rule in the US.

There aren't many rules that harbor any sort of common sense in the US. But this is America, and so should you.

That's because freedom!


Freedom to be an idiot.

Now with that said, I've driven on PSS below freezing with no moisture around. Now if the roads are wet and it's near freezing or even a hint of snow, no way. Car stays in the garage.

[G35POPPEDMYCHERRY]

lol the i drive in freezing temps all the time. all summer tires get hard as a rock but still have traction. its completely safe, drive like a granny and you'll be fine. no snow. but rain is fine

[G35POPPEDMYCHERRY]

Originally Posted by Railgun

so is his car going to fall off the side of the earth? or slide all over the place? but i will rephrase you have to be careful not to give to much gas. but in all reality traction control will save u so really nothing to be alarmed about

[frankiebones]

Originally Posted by ImGoingPlaces

how concerned should i be about these summer tires in the 20 degree weather im having rn ? Is it dangerous?

thanks

adam

I'm work in Brooklyn not far from where you live (it shows Queens) so let me give you some advice.

I dropped $2k plus on a set of 640M Winter Wheels and Tires last winter that I purchased from the dealer. Based on the tread wear from the 4.5 months they were on last year, even with the crazy amount of driving I do, these should last me 3-4 winters at least.

I was stranded in a snow storm after having Audi S4's for over a decade and HAD to get snow tires. don't make the same mistake. Get winter equipment for a summer car and you'll be shocked at how well the car performs even in 8+ inches of snow.

[frankiebones]

Originally Posted by Railgun

45

Completely agree but it's really only necessary when snow is in the picture at 32 or below. anything above that and the car is completely driveable with winter tires using some self control.

[M5Rlz]

Climbed a mountain when I got stuck in rain that switched to snow and made it home 40 miles in my F10 M5. That was wild not sure how I did that (bottom pic)

Made it 30 miles of 60 mile trip home (I did eventually get stuck on a steep in climb when traffic finally stopped) * this was scary cause the snow dropped so fast so hard, that it got to the point mid trip where I couldn't see the tire tracks in front of me. (m4)

If you drive and respect the power and tires are cold you can be fine year round, not that I'd ever advise someone to take the car out in inclement weather but if you get stuck MPSS is the tire I'd wanna be on in an emergency situation trying to get home.


Just respect the cold/ inclement weather if its coming and you'll be fine.

[OF Hero]

Lack of grip and risk of physical damage to the actual tires (though I think this is in EXTREME cold only, read about it but have never seen it).

https://www.consumerreports.org/cro/...king/index.htm

[stormlv]

Without trying to disrespect anyone saying that if he drives slowly he should be fine, I have to say that's borderline giving dangerous advice...

The general idea is that summer tires start losing their grip when the temperature falls below 7C (44F). At -7C (20F) the tires will have severely degraded performance compared to equivalent snow tires at the same temperature.

IMO the main issue is what happens if you need to do an emergency braking?
Even if you drive slowly, there will be a significant disadvantage when braking...

Again, to me, it's baffling that someone that can afford an F8x, will not put out the extra $$ to switch to a pair of proper snow tires.

It has such a big impact on how the car behaves and safety in general, that I think it's crazy not to do it :|

[ImGoingPlaces]

thanks a lot guys, lots of good info. I actually have a VW GTI for snow days. Mainly worried about the temperature itself. From what i gather so far i should not be driving aggressively until it warms up again in the spring. I have tested this over the last couple days and there is deff a huge loss of traction but ive been very careful. Anyone try going into the corners hard in the winter on the PSS? did you slide around?

[nicknaz]

If you drive and respect the power and tires are cold you can be fine year round, not that I'd ever advise someone to take the car out in inclement weather but if you get stuck MPSS is the tire I'd wanna be on in an emergency situation trying to get home.

Just respect the cold/ inclement weather if its coming and you'll be fine.

Same thing happened to me in my 911. Got stuck in the OR mountains with rain turning to snow while on PSS tires.

As you said, it's doable for an emergency situation but not something to plan for doing.

The margin for error is also quite slim. Just a bit too much throttle or just a bit late with the counter steer and it's trouble. I was using PSM on obviously and my car was 911 but I was still having to correct a lot of oversteer

Would have been an easy cruise in snow tires

[Ian1973]

20 degrees you can make it, just drive normally and try to anticipate issues. Obviously a panic braking situation may overwhelm available grip. But I would switch over to snow tires soon.

[Oliver Queen]

As long as you park in a garage overnight I don't think you should have any issues temporary, I drove today in 20 degrees weather and everything seemed fine, I didn't drive aggressive to test traction obviously; switching to my winter set up next weekend

[Tommy L Garage]

Without snow you can get away with summers. Going over bumps will be harder - these tires are like bricks when it’s cold. And of course less friction.

I myself bought 513M wheels and installed winter tires on them. Could not be happier! So much grip. I was having a lot of fun in my M last weekend when we were hit with a major snow storm here in NJ.

See my video below. 1:20 shows what I carry in the trunk and you can see some snow fun after that.

[M5Rlz]

Originally Posted by nicknaz

Same thing happened to me in my 911. Got stuck in the OR mountains with rain turning to snow while on PSS tires.

As you said, it's doable for an emergency situation but not something to plan for doing.

The margin for error is also quite slim. Just a bit too much throttle or just a bit late with the counter steer and it's trouble. I was using PSM on obviously and my car was 911 but I was still having to correct a lot of oversteer

Would have been an easy cruise in snow tires

Yup totally agree. I didn't have my lexus with me, usually winter temps if the suns gonna be out and I take a car out with summers I monitor the weather. Both those days called for nice weather early and bad weather later, turned out the storms both crept up fast on us. Got stuck. Same thing happened in my GTR with summer stock Dunlops. Super Bowl 2014/15 it called for ZERO snow was at a friends saw it start to rain and headed home early. Turned into snow pretty quick and slid down a hill lol managed to get home fine. But seeing just how bad some of the other brands compared to Michelins in that weather made me appreciate the MPSS.

Originally Posted by stormlv

Again, to me, it's baffling that someone that can afford an F8x, will not put out the extra $$ to switch to a pair of proper snow tires.

It has such a big impact on how the car behaves and safety in general, that I think it's crazy not to do it :|

Never kept cars long enough that I'd like snow sets to pile up . 2-4 weeks a year planning around the bad weather, I've gotten caught off guard 4 times in 6 years three of those time the same year.

Also you can heat your tires up they aren't doomed to be cold forever lmao.


Attached GTR picture coming home from an out of state event with R888s on it made it 15 miles in snowy conditions with those on it. Not sure how I made it home that day lol

[2000cs]

Lots of temp numbers being thrown around so I contacted Michelin and they said 40f for these tires is the threshold. Below that, you’re on your own.

[CanAutM3]

The PSS are completely useless in the snow and are outright dangerous.

However, I've driven the MPSS in -10deg weather without any issue, as long as the road are dry. I found that I did not have much less grip compared to my winter tires. It is perfectly safe, you just need to adjust your driving accordingly.

[cwhands]

I've seen several on summer tires in low 20s - mid 30s.
I'm curious about the "cracked tread block" thing - has this happened to anyone?