I will be parking my Pcar in the winter as well....I have my WRX for the winter months and what it goes through every winter, i cannot fathom to put my Pcar through it.

and so she hibernates...

 

It's been exactly one month since I posted this and the only snowfall Chicago has gotten has occurred when I was in Vegas. Where's the snow? I want to have some wintery fun in my 4S!

 

I'm moving to Chicago from Houston and I'm planning on getting the Victor Zehn with Pirellis Sottozero. What tire size did you use for the 18x11's? (The Discount Tire guys down here didn't recommend 265/40R18).

 

First snow of this winter in Seattle today and all is well with the 970AS

 

I've been pondering what to do, and decided to try keeping summer tires on both Porsches through the winter. Our daytime temp is usually mid 30s or higher, and I've found the traction to be good enough down to the mid 30s, though I don't engage in spirited driving unless the temp is above about 45. And December and January are our coldest months, so we should start to see some warming in February.

I've also found that the rule of thumb that 1 psi tire pressure change is about 10 F change in tire temp is reasonably accurate, and I've found that tire pressure usually increases about 1 to 3 psi, so that also helps gauge the situation. For example, if I start in the garage at 50 F and the tire pressure stays constant or goes up by 1 psi, I know that I'm holding a tire temp of about 50 to 60 F, even if the ambient temp is colder than that. One caveat here is that air temp inside the tire isn't necessarily the same as the temp of the tire rubber itself.

When it gets colder than mid 30s, we have two other cars with all-seasons, one of which is AWD and does well in snow.

 

Snowing this week in Seattle (see KEV post ) but in Hawaii this week at a conference. Did do local P club winter driving skills 1/07 in Bremerton on my Pirelli sottozero 240 but temp only 39 degrees then. Still had fun, though.