Ray, You did an article on the feature of an engine stopping when the car is at rest. In Naples, FL we turn it off because the A/C won’t run when the engine is off. Way too hot to use that feature. I have a Jaguar and after asking them to permanently disable it (and told it couldn’t be done) it quite. I thought they did it and recently had service where they wrote in their report that I needed a $350 battery. The main battery was fine. Checking on the internet it seems this second battery’s only function is to restart the car when the ECO is on.
This doesn’t seem to hurt the car’s operation and I have to wonder how many shut offs I would need to save $350 in gas.