QUOTE(fx_53_xt @ Feb 10 2023, 11:25 AM)
Dear epjx31,
1) Are OEM tires really different from aftermarket?
- I recently bought a car that came pre-fitted with Bridgestone Potenza S001, which has very polarized wet performance review result on the internet. (Mainly poor results)
- I am skeptical to keep it after these reviews, but I also remember seeing Michelin saying how they custom developed PS4S for BMW M star marked tire.
- Could there be a chance that the S001 i'm having is also designed in a different way to suit the car I'm having?
2) When tires are stored for 6 months at a time without temperature-controlled storage, will there be any degradation from the atmosphere? (Assuming it is stored shaded, but not temperature-controlled)
- I live in a 4 seasons country with mild winter, average temperature is around -5 centigrade range, with a week or two of cold waves that will go as low as -18.
- I took delivery of the car during winter and I immediately swapped out the summer Bridgestone to a Michelin PS4 All Season.
- I stored the summer tire at the tire shop and may / may not swap them back when temperature rises in spring (depending on how much confident I have in the Bridgestone S001 vs my current PS4 AS)
- I took a look at shop's storage area, it is a shaded warehouse but looks to be not temperature controlled. In this condition, will the summer tire degrade after 6 months of storage?
Interesting. let me try and answer you
1) OEM tires are designed differently than normal replacement tires. There is pro & cons, you can check out the tesla comparison (
Michelin-crossclimate-2-vs-michelin-primacy-mxm4To make things short, usually OE is going for rolling resistance and handling performances which suits its own agenda. From a user perspective a replacement tire is more design for you as they consider solely a user requirement. If I were you , I will swapped them for a replacement tires which suits your requirements.
2) I assume you in the US due to PS4 all season. Usually its the other way around where you are afraid during summer your winter tires will degrade. If you are talking solely about your summer tires there is no issue to store it in a winter condition. By the way, PS4 all season is not a 3 peak mountain certified tire, which means its not mean for serve winter conditions as you are facing. Cross Climate 2 is more suitable if you are looking for an all season liking. But since you already have a summer tire, you should probably get a real winter tire rather than these all season tire