Anyway to remove this dirt from the paint? Its like its embedded in it. If so what product will do the trick? Thanks

Have you tried a claybar? If you're not familiar with the product, do a search on here, there'* hundreds of threads on them. I think that would be a good step in removing that emebdded dirt.

If you're talking about the rocker panels that are known to get beat up, then claybar would help, but sometimes those areas get so bad it takes the paint off completely. If yours are not that bad though just go at it with the claybar. Some pre-wax cleaner would help too and wax it afterwards.