[speedjunkie]

^That's why I'm thinking it's due to the test diagnostic mode, because I only spray while it's running, and at 100% on at least half of the map and mine doesn't look like that.

However, regardless of whether it's sitting there dried up or not, that's still what's going into the engine, it just depends on if the amount being used is damaging the engine somehow. From what I understand, the only thing really different from wiper fluid and mixing your own is the dye being used. I could be wrong though.