Water spots on GPS screen

[Coon]

Can't seem to keep get the water spots off the screen of my Garmin 498. Hesitate to us anything (windex, etc) unless I know it's ok ?

[Dawg]

Use a plastic cleaner, some cleaners like Windex can dull the plastic over time.

[Steve_A]

Warm water and dish washing soap should work or a ammonia-type cleaner like Windex.