50cent

Is there an indicator on the stick that tells me how much washer fluid i can add?

Grazhoppa

This is the most important fluids of all in your S. You have to contact your local Honda dealership for optimum level depending on your regional temperature. If it's too low, you may run out when the outside temperature is too high or your windshield is too dirty.

jankemi

Just fill it up. No harm done if it is too full.

Chazmo

Last I pulled it, the plastic "dipstick" has holes at the bottom. Just fill it until fluid covers the holes when you remove it. As others noted, overfill is meaningless (except it'll get a bit messy. )

RazorV3

just fill up to where the tube expands.

50cent

Thanks guys. I filled it all the way up to the cap.