The same thing you use to clean and restore your car head lights. But you may have to use a Q-tip instead of the buffing pad.
I once had a computer beat me at Chess, but it was no match for me at Kickboxing.
Exmark Lazer ZX 29 hp Kaw 60in.
Exmark Turf Tracer HP 19hp Kaw 48in.
Honda HRX 217 21in.
Stihl FS90R Trimmer
Stihl FS250R Trimmer
Stihl FC 110 Edger
Stihl BR600 BackPack Blower
Stihl MS261 Pro Chain Saw
Stihl HT 131 Pole Saw
Stihl SG20 BackPack Sprayer
Kawasaki KHT 600D Hedge Trimmer
Kawasaki KCL 525A Extended Reach Hedge Trimmer