Odometer: 1069 miles

I tried the parcel shelf mounting suggested previously on the way into Boston today, and got a 50% (i.e., 1 out of 2 reads) green light success rate, which is better than my success rate on the windshield. I’ve adjusted it again this morning for what I hope is better visibility to the transponder readers and will see what the response rate is on the way home.

For those of you suggesting holding the transponder up through the sunroof, I did try that on the way to Maine and got no response. I really do think my 12-year-old transponder batteries are at least part of my specific problem (even if the Mass EZ-Pass folks say the transponder responds just fine in their testing box).

More data when I pass through more tollbooths.