How to slow paint breakdown

[PalmSprings]

I have a 01 montero for a toad.
I have just noticed my (metal not fiberglass)hood paint appears to be getting fine crack like appearance on it. Appearsto be Deep in the paint and not surface.
id say about 12 x 6 inch section.
If anything,what can I apply that REALLY protects and slows down the paint destruction.
I know it should have been kept it out of the sunlight ,but Im looking for other solutions

.
i know you hear many things that should work,but Im not terribly trusting on some info sources.
I went to a body man , asked and he said "wax it weekly"
I guess i will start asking more body / paint men and see if I can get some consistent answers.
Guess I could search the web too.

If you choose to give advice please state
if you just heard the info
If youve heard from paint/body 'experts" .
If you have practical experience and know for a fact,again,say so.

Still one can never ne really sure of the answers,but its the best I can do right now.

[PalmSprings]

For anyone really interested in the answer to my question. The following is an answer I received from another site to the above question.

One can stave it off for a short while on the rest of the car but not for long. I have painted many, many cars over the years and tried all the cool waxes, nothing works as good as a good old carnuba, do my vettes twice a year with no problems.

You other choice is a sealant type wax. These are good from what I hear but not show car quality as carnuba. Also, if you are looking at a repaint in the near future I would stay away from them until it was painted.
I just dropped a 120 bucks for the Zaino kit to do one of my cars but havent gotten around to it yet, too many projects and not enough time.

[tvman44]

Keep it out of the sun.

[Gary RVRoamer]

It could be damage from the engine heat - inadequate insulation under the hood. If so, nothing you put on top of the paint is going to help.

I use a regular automotive "wax" (they are all synthetics anyway - maybe with a touch of carnuba in them for advertising purposes)) on my cars and have no problems. Maybe they get waxed twice a year, but more like every 7-8 months. I live in Florida, so they are always in intense sun. Ditto for my coach, which gets Protect-All 1-2 times a year.