I live 1 mile off pavement, and though it's been a very wet spring I'm having problems with the dust collecting on the back window to the point of complete obscurity. And it's going to be a lot worse when things dry out. I understand the reason and it's related to the aerodynamics of making a car slippery and sloughing the air stream at the rear for efficiency. The Volt wasn't good but the Bolt is really bad.
Yes, there's a wiper back there but it has NO water back there to lubricate the wiping action. That means if I use the wiper to knock the dust off then I eventually wind up with a fog of scratches arced in the pattern of the wiper motion! And the blade is at rest in such a way it catches all the dust that slides off and piles up on it so the first swipe it's pushing quite a load of it. Been there , done that. Why oh why is there no water reservoir and nozzle back there? Yeah, I know why but, quite short sighted IMO. Presently I keep a pail of water with a top on outside the garage door and wash the rear window after almost every out and back trip. And a wipe to the camera, though it hasn't deteriorated quite as fast.
I'm thinking I'm going to have to design/install an adjustable blade or air foil across the rear overhang that will direct a flow of air from that coming over the roof and directing it down to keep the dust settling on the window. What would be ideal is if I could cut a vent hole in that cheap plastic overhang and install the air diverter in it. Two positions would be enough. Closed and open. In my dreams I'd have a switch.
Yes, I know it would cut efficiency a little but the situation usually involves lower speeds for a minimum amount of time.
Yes, there's a wiper back there but it has NO water back there to lubricate the wiping action. That means if I use the wiper to knock the dust off then I eventually wind up with a fog of scratches arced in the pattern of the wiper motion! And the blade is at rest in such a way it catches all the dust that slides off and piles up on it so the first swipe it's pushing quite a load of it. Been there , done that. Why oh why is there no water reservoir and nozzle back there? Yeah, I know why but, quite short sighted IMO. Presently I keep a pail of water with a top on outside the garage door and wash the rear window after almost every out and back trip. And a wipe to the camera, though it hasn't deteriorated quite as fast.
I'm thinking I'm going to have to design/install an adjustable blade or air foil across the rear overhang that will direct a flow of air from that coming over the roof and directing it down to keep the dust settling on the window. What would be ideal is if I could cut a vent hole in that cheap plastic overhang and install the air diverter in it. Two positions would be enough. Closed and open. In my dreams I'd have a switch.
Yes, I know it would cut efficiency a little but the situation usually involves lower speeds for a minimum amount of time.
