Quote:
Originally Posted by Vman455
25% of the NEDC city test is spent idling (vehicle stopped), compared to 11% of the EPA city test. So, a stop-start system will have an outsized effect on a European rating, but still a significant impact on an EPA rating. I wonder how that compares to a typical driver and trip.
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That's the reason they were introduced here ...
On a typical tank, the effect is utterly negligible.
In stop & go traffic, I and many others shut it off so it doesn't constantly stop/start the engine.
On my car, it also stops the A/C which is uncomfortable when that's needed.