Buying a tool such as one of these seems plausible. Some are kinda expensive and I would not trust that FLIR thing. Anyone have a preferred scanner? Know the best one, or ones?
I imagine taking readings of two specific points on the dash every 3 or 5 minutes to see how temperature changes over time. I wonder about heat being transmitted across the dashboard however, so that my readings are confounded. Probably that would happen slowly though, with minimal effect. Thoughts?