lol, my community is still developing, a lot of house being built, that's why I got 2 recently on the 911, 1 in front tire and 1 in rear tire. My other cars so far so good,
knock on wood.

 

Will it work on the 991? Where can we buy it? I am losing about two 2 psi every two weeks and can not find the nail/screw even with a flashlight and mirror.

 

The only way to find a slow leak is to put it in water

 

For clarity. Just the wheel. Not the whole car.

 

The last one I patch, I could't see it either it went in diagonal like this / little more slanted, the cut in the rubber covers it, had to take a pointed nose pliers to take it out. I use a spray bottle and mix little bit of car soap and water and spray around the tires to see the bubbles. Then spray it again after I patched it up to see any air coming out. Works like a charm.

 

Now I will have to retrieve it from the pool.

Seriously though I just remembered the soapy water trick. GT3 remembers too . As a general rule how often do most members have to add air.Mine holds steady in the garage but changes after hard drives even after cooling overnight.

 

I tend to have to add air in at least some of my tires every 1-2 weeks, depending on weather conditions (temperature and humidity) outside and how much hard driving I do.

 

Maybe I can't find a leak because there isn't one.

 

Wife will file divorce
I am not a lawyer but
Happily married

 

I noticed on configurator that BMW was offering non run flats now as an option on some models. The run flats on my f10 550 truly are an abomination and totally invalidated by sidewall pinching damage due to pot holes.

If you are going to sell Low profile oversize wheels as part of your cars original equipment, why have run flats? They don't do it on the m cars.

 

I've been grudgingly impressed with the 19" PZeros on my '13 981. They hold air very well, even when punctured by a screw or nail. I haven't had to add air in the 5K miles/6 months or so since the last hole was patched. The last car I had with Pirellis made me swear off the brand, but that was a long time ago...

 

Well the 991 weighs a bit more but they overbuild these things so much I'd say it will definitely work on a 991. For example they are made for infrequent use, yet I know one guy has used his to change tires at autocross, that's 10+ times a year for many years. So no worries. Don't know where you would find one. But its basically just a scissors jack. Lots of cars had them for years. Every Honda, for example.

For slow air leaks, don't forget to check the valve stem core. Those can go bad any time, and they will leak even when using brass valve stem caps with an o-ring.

Its good your keeping tabs on pressure. Low-profile tires are great, but the low profile means lower volume which means the same amount of leakage will result in more psi drop than with a higher profile tire. Handling also changes more, and the tire and wheel both become much more vulnerable to impact damage.

 

Thanks I should check to see if the stem core is seated.

 

I have been reduced to fearing a long trip in my 991. If I incur a flat in a rural area, I am toast. Unless you have a civil response, please do not be rude. Let's terminate this thread. It has not been constructive and I promise to never ask another question.

 

In most cases, you can just air up your tire, drive on, watch the TPMS and refill periodically until you get to a service location.
Then you can get a plug or patch repair and worry about replacing the tire later (if not then).

Carrying your own Plug Kit can allow you to plug and refill on the spot.

In dire straits, you still have the factory sealing goop to use.
Just buy a spare TPMS now, so you can replace it easily, when you finally have the tire properly serviced.
The TPMS will be toast, after using the sealing goop, plus your rim will need major cleaning on the inside.