In order to make pulse and glide efficient IMO you need a way of indicating weather your in open/closed loop mode. If your AFR is dropping down too low your loosing everything you just gained by pulsing. So, put up another point for instrumentation.
IMO, pulse and glide is where I've gained nearly all my mileage since my route is almost all highway. FYI, my previous percentages were per the old EPA, not even the new ones. The 2008 ratings would put me at 52% right now, and 72% come summer.
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