So I had a similar concern (paint oxidizing after short period of time. I''m approaching differently this time and decided to use a coating Vs. A seal and wax....we shall see how it last in time

- Washed with CarPro iron X foam and clayed vehicle.
- Polished with Boss's Fast Correcting cream on a 5" Megs DFC5. Multiple passes on hood, while 2 on roof and trunk and just once elsewhere.
- Used CarPro eraser to prep for coating
- used two coats of CarPro C.Quartz ceramic quartz (used for first time and happy with ease of application and results.

Very happy with results on this almost 200k mile vehicle that was very much neglected when we purchased it.