Having been inspired by talking to Alex (Albad) & seeing his G1 Insight I would like to share a few cumulative options that I have done to reduce wiper blade/arm drag:Installing the more aerodynamic wipers may help but it doesn't solve the problem that the wiper arms are exposed to the high speed air flow.
If they are attracted to a magnet, they're steel. Some stainless steels are only weakly attracted to a magnet, but we know they're not stainless steel.are they really aluminum? How can you tell.
The paint has flaked off due to the corrosion underneath, the corrosion is clearly aluminium oxide rather than rust. Aluminium is a normal metal..are they really aluminum? How can you tell. They seemed like normal metal ones to me when I took them out to clean.
It seems we were both partially correct: the upper & middle section of the wiper arm is magnetic i.e not aluminium but the short section next to the attachment nut is a much thicker metal section and non-magnetic. The first 2 pictures show the non-aluminium parts; the third shows the aluminium part.The paint has flaked off due to the corrosion underneath, the corrosion is clearly aluminium oxide rather than rust. Aluminium is a normal metal..