LFS distinguishes between different types of surface (concrete, asphalt, grass, etc), but I don't think it distinguishes age and condition of asphalt. I'd guess all asphalt surfaces are of the same asphalt class with the same grip properties.
But it would be nice if it did have difference between dirty and clean parts of the track, and parts of the track with different temperatures (in sunlight or in shadows). Who knows, might be part of S3 some day.