Dirty Tire-Bug ? (McLaren C12 GT3 @ Silverstone GP - Special -Event)

Not sure about this one, but i think it's a bug.
I tried the Special-Event with the 12c GT3 @ Silverstone. I drove a lot and got it down to a 2:02,8 (still no gold though).
What annoyed me a lot during that session was that when i hit the grass for a short amount of time, the car started to oversteer extremely (!) from that moment on. First i thought this was because of the simulated "dirty tires" and i rated it as a nice feature.
So after i hit the grass for a short time I drive slowly around the track to get 'clean tires' again and to be able to push again. But what i regocnized was that even after 5 laps the tires weren't getting clean again. The only possibility to get a nice balanced car again was to reset the car to the box and drive out again. Tried it several times. Each time when i hit the grass i got oversteer in the next corner and it didn't went back to 'clean tires' and no oversteer even after many laps.

So i guess there is something from with the simulation of the tires.
When they get dirty, they don't get clean again by driving on and staying on the track.

Would be nice if somebody could check if he experiences the same.

Tire-Wear was 'off' at my session.

 

I have to push this thread again.

Noticed this issue with several cars now.
Am i really the only one experiencing this?

 

By driving slow to clean you tyres, you are making the temperatures drop very low. This is why you have no grip. When the tyres get dirty they only need a couple of corners to clean up, then push hard again as soon as you can or else you will end up with cold tyres.

To see what it's like to drive on cold tyres just drive out of the pits and stop the car for 3-4 minutes on track then drive, it should feel the same as what you experienced.

 

I have experienced that same thing, although my thoughts are that it is something to do with the temperature put into the tyres when spinning as I have had it happen on a Tarmac run off.

After a big spin the car has no lateral grip, as soon as a cornering is attempted the car will spin again, and again and again and again...They only way to get any grip is to change the tyres. It is pointless to try and bring the set on the car back in again.

If this is a bug or a feature I do not know, without being able to monitor pressures and temperatures it's hard to say!

 

Exact what i experienced. Grass or spin and the grip is gone. No chance afterwards to get the tires work in a normal manner again.
Driving as fast as before -> you will spin again.
Driving a bit slower -> you will spin again.
Driving much slower (like 10 seconds a lap slower) -> you will not spin, but the tires still won't get in normal shape again, even after many laps.

 

If you use soft tyres they will last only 1-2 laps on a track like Silverstone. Performance drop is radical. Big spin on high speed and those tyres are gone.

If you drive tyre wear off you will have to use medium compound. Soft compound grip starts with 90% and you need to "break the surface" with one lap to reach for 100% grip. Tyre wear off they stay at 90% forever and obviously it's worse than what medium offers at 100%.