Even after washing/waxing, I still have problems keeping the tail lights clean. Is it the car's design or color or should I use another type of wax that repels dust/dirt? I use Meguiars wax which I think is one of the best waxes out there. My car's color is call "plum" which I think came out in 1995.

 

The meguiars worked well on my faded lenses.

 

are your tail lights faded or are they picking up road grime,i dont under stand you question.[]

 

The Tail lights are picking up road grime.

 

there is nothing you can do there.buy some clear plastic cling for the lights when they get dirty throw away and put some new ones on,

 

I pick up a lot of dirt there too. Every now and then I take the lights out and spray behind inside. I notice that the dirt really builds up behind there. It seems to help a bit. I saw some lights that come flush with the rear I am thinking about going with those to eliminate this problem.

 

Upgrade to LED lights and you dont have to worry...They will be to bright to see dirt