Car Wax - Is this still helpful to a 18-year Old Car?

[Lin Dan]

Much better siguro if you polish it first prior applying wax

If the polishing compound has an ingredient to remove or lessen the watermarks on the paint, this is good start. Then afterwards, a sealant may be of big help.

[dr. d]

If the polishing compound has an ingredient to remove or lessen the watermarks on the paint, this is good start. Then afterwards, a sealant may be of big help.

agree.
i think you need a mild abrasive, e.g., rubbing compound, to remove the oxidized layer first, to expose the underlying color.

[ice15]

*I can't see the faded parts from your photo.

If faded compared to other parts of the car, baka repainted na yung parts na yun and hinabol yung color - wala ka nang magagawa

If orig paint pa bung car (highly unlikely but possible) then pwede mo pabuffing para magpantay yung color tapos protect mo ng wax...

[Noel_tskot]

*I can't see the faded parts from your photo.

If faded compared to other parts of the car, baka repainted na yung parts na yun and hinabol yung color - wala ka nang magagawa

If orig paint pa bung car (highly unlikely but possible) then pwede mo pabuffing para magpantay yung color tapos protect mo ng wax...

Sir thanks for your input. Ang sakin lang po, wala ako balak i-revive yun lost shine or glossy paint nya. Gusto ko lang ma-maintain yun natitira pang kulay nya and wag na madagdagan ang mag fade as much as possible. So, gusto ko po malaman kung anong best protection ang pwede ko ilagay. Thanks in advance ulet