Modified Pulse and Glide.
I have started using a modified version of Pulse and Glide, when driving on a busy highway. What I do is briskly take the revs up to 2800 rpm then lift off the throttle and let DFCO do its stuff, until the revs drop back to 2200 rpm. I keep in gear and once I reach 2200 I briskly accelerate back to 2800 again.
My speed doesn't vary by much, and I disrupt the traffic very little. Most following motorists probably don't even notice the gradual change. I seems to keep my average mpg up quite well.
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