Gearhead1

OK, last year my car was pretty much stock and I had very little trouble getting around in the snow. Since then, among other things, I've put a Fuddle 3000 stall converter in my Z and the very first snow we had (3 to 4 inches)I had a terrible time getting stated from a dead stop I even had Pirelli P Zero Nero M/S on it and they were rated #1 in The Tire Rack's customer survey for snow traction. So I figured if I'm going to get stuck anyway, why not just run my summer tires (F1 GS D3's) So I sold my Pirelli's and have my Goodyears on right now. Now for the questions, 1) Does anybody else run their F1's year around in a climate where the temps get down towards the single digits?? 2) Does your car sit outside??? And (this is the question I really want an answer to) do your F1's flat spot because of the 2 items mentioned above??? I've been getting a wicked vibration until my tires actually build up some heat. (usually after about 3 to5 miles of driving) Is anyone else experiencing this???

98BPMTA

all the time . my TA and my wifes Z-28 do it. just the way you said.

think its very common, and it don't get very cold here in Georgia

LTSpeed

Yeah, the GS-D3's take 5-6 miles to round back out after sitting for a couple weeks. And never EVER use them on snow. These are the absolute worst tires I have ever had on snow or ice. 1/8-1/4" is too much for them. Goodyear will back up what I'm saying as will many other people on this site--do a search.

On dry or rain (hot or cold) they are simply awesome!!

Dal1as

Don't even try to drive in snow with these tires. It's like rolling on drums. Never noticed the flat spotting issue.