I see them mostly pinned on the outside grill of the garbage trucks around here. I took notice and slipped a piece over part of my rad on my first water cooled motorbike. Worked great.Radiator Insulators (cardboard) were actually used in upstate NY years ago.
Only way to get the heaters to work in sub zero temps.
Almost spit my lunch across the room.
Not the easiest forum to post on.Thanks. It has been kind of quiet around here.
SadnessNot the easiest forum to post on.