[euromodder]

Some turbulator tape updates :

The pieces of turbulator tape on the rear of Hägar have been removed as they didn't seem to have any effect at all on the air flow - no telltale signs in the build-up of dirt or lack thereof.
The tape is just too shallow (1mm or 1/25" ) to have any noticeable effect on the boundary layer of air .

The much more effective tape on the mirrors is having a hard time just staying on.
It has partly peeled off, and is broken in a few places.
Only the tape on the A-pillars and the top of the windshield are holding up.

Apparently, dimpled turbulator tape can't really stand compound curves on the surface it's stuck onto.
I could see the zig-zag tape coping better with compound curvatures as it can flex in any way.
Dimple tape, being a straight strip about 1cm wide (2/5" ) can't flex in 2 dimensions.