Yesterday while cleaning the interior of my 91 300D using Lemon Pledge (don't laugh) and walking back inside with the pledge in my hand I sprayed some on my fog light lenses which are original with 300K miles of sand pits. Guess what, it took most of the fine pits and cracks out of the lenses. I'm sure it won't last very long, but makes them look much better. It will become part of my weekly cleanup routine.
By the way, you should try the Pledge on the dash and wood trim and what ever you are cleaning. It works great.

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84 500 SEL (307,xxx miles)