My cruise control is still busted, so I can't do as-controlled-as-possible testing.
But I'll likely try it anyway - it'll also be a test to see how consistent & steady I can hold my speed.
I could just do coastdown comparisons (they pretty much remove the driver from the test - which is the goal), but I want to get an idea of the actual fuel economy impact, and coastdown runs don't tell me that as directly.
Before any of that, though, tuft testing to make sure it's got attached flow.
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