I live in central Indiana & have driven my Transit for 2 winters. I travel 250-300 mi. a day on all kinds of road but mainly Interstate. Must admit that I have had no problem whatsoever like you have had. Just replaced my first set of blades. The spray jet is not a mist type...big deal...cleans the window just fine. I actually find the system to be very efficient. Just thought I'd rebuttal with my positive experience.