How much work do you want of put into it? A fine grade polishing compound will do wonders for oxidized paint. McGuires make some and available at most auto atores. Follow that up with the wax of your choice. Be very carefull if you are using a power buffer with the polishing compound. I think McGuires has a you tube video on how to use a power buffer with one of their products.
Paul, Kathy, and Tux a 4 month Mini Schnauzer
2014 Tiffin Phaeton 42 LH, 2013 Honda CRV
"When the time comes to look back, make sure you'll like what you see"