I am risking posting this as it has been discussed to death BUT, I don't have the foggy and hazing problem. My headlight assembly is actually corroded. Over time, the corrosion has creeped down the front of the assembly. It's about 1/4 down down......both of them.

If it were just hazing and/or fog like stuff, I could use the 3M product. I have already replaced the housings one with used one that were nearly as bad as my original 2004s. Those quickly started the corrosion business too.

How in the world do any of you keep your headlight lenses so clear and beautiful? Remember, this is corrosion, not fogginess nor hazing like happening. Some day, my lenses are going to be so corroded, light won't come through. Besides, they look so god-awful

If I were to buy brand new headlights, have the lenses been improved?

Thanks!