Changed By: Laz Change Date: November 18, 2015 05:26PM When to change to winter tires
Daytime temperatures have been dropping into the low 50s recently, and I've noticed the "low speed full-lock front tire skipping" beginning to occur. Porsche recommends going to non-summer tires when it's below 45º, but it seems to me the skipping is indicating an upper temperature threshold for compromised overall traction. As the forecast is showing consistent ≈ 45º daytime highs for the next several days, I think it's time to change to the PA4s. (Summer fronts: N-spec Goodyear F1 Asymmetric 2, 235/40-19s on a 981 Boxster S)S. Something like 30-35,000 miles on the summers, so maybe compound aging is a factor.)
Original Message
Author: Laz Date: November 18, 2015 05:24PM When to change to winter tires
Daytime temperatures have been dropping into the low 50s recently, and I've noticed the "low speed full-lock front tire skipping" beginning to occur. Porsche recommends going to non-summer tires when it's below 45º, but it seems to me the skipping is indicating an upper temperature threshold for compromised overall traction. As the forecast is showing consistent ≈ 45º daytime highs for the next several days, I think it's time to change to the PA4s. (Summer fronts: N-spec Goodyear F1 Asymmetric 2, 235/40-19s on a 981 Boxster S)