Someone had done this last year with an inside/outside thermometer It keeps
the inside cooler IIRC.  Check the archives...

Regards,

Mike Pedersen
'88 Westy GL Automatic
Powell River, BC

  Bruce Nadig asked:

Can anyone offer any hard and fast data (data is what I am looking for, not
conjecture) showing that dark tint retains heat? I can believe and accept
that dark may be less effective than reflective. But my question is whether
or not dark tint does not work or is actually counter-productive.