In the new patch (idk if it did it on old patches, because I just got S2), the slicks have spiking temperatures. If I'm driving say the fbm or fxr, when I press f9, the temperature readings are fine when I'm stationary, but go crazy once I get any speed at all. The numbers fluctuate the the colors go crazy. Is it just mine or is this a flaw in LFS's tire system?

Its because the tyre has different heat spots. The numbers you see are how hot the top of the tyres are. So when you are stationary the numbers will be the same however when you start moving a different patch of the tyre is represented. So locking a tyre while braking will heat up one part of the tyre a lot more than the others.

Oh! Thanks! I thought my LFS was just spazzing out. Good to know it't not just me.