hotlava@interpac.net wrote:
> so it will stay on at highway speeds?

Yep, it should as long as it's installed correctly.  You should have a
rubber lip around the flue vent.  Make sure it's tucked into that
rubber.  If no air gets under it, it ought to stay on.

I ordered mine and installed it before I made any highway trips. Since
then, I've driven 12,000 miles, most of it above 65mph, and it's still
there.  YMMV!