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The VX looses lean burn when you shut the engine off. It takes something like 30 seconds for lean burn to reengage.
That is my understanding.
For that reason, EOC P&G in a VX is not really a practical strategy, and I use pulse and glide with the engine idling. With an idle fuel consumption of .125 GPH you are getting 8 times the speedometer reading in mileage during the glide phase.
Another option for those who can benefit from EOC glides is to bump start the engine and avoid the fuel enrichment that comes with using the starter for restarts.
I would find it hard to believe that that strategy, when used to perfection, and mileage can be doubled, compared to normal operation, would result in higher overall emissions.
The C02 readings for my VX are very close to much more modern hybrids, without hypermiling techniques.
regards
Mech
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