When I bought my 98 in June of 13 it had not so clouded headlights but clouded just the same so I went with the typical stuff to clean 'em up. I didn't want to keep spending money on them.......Went to Autoanything.com,looked under "Light Guards and Covers" punched on it and found X-Pel Headlight Protection......$49.99 to $79.99.......Checked them out and bought 'em.......been on for about 4 months now and NO discoloration.....none.....When we lived in Florida I put them on my wife's 08 Toyota Camry when it was new and had no/nadda discoloring.....I know I waited 2 1/2 years to do this......I'm a little slow on the up tick.....Something to think about........My name is Bruce Hansen......Senior Citizen and I don't suffer fools:slam