I've rewritten this question 5 times now trying to think of different ways to make this happen so I'll lay it out straight:
I'm looking for ideas for a way to reduce the fuel consumption when the engine is idle (stop & go traffic, coasting, lights, etc) with my automatic transmission. Turning the engine off will reduce it to 0 but isn't really a valid method for stop & go traffic, apparently (according to
this thread) the car has issues neutral starting at higher speeds (any update on that? I've done up to to 25 mph), and its pretty inconvenient to shut off/restart at lights where the timing is suspect.
I figure there must be a way to fudge with the idle speed, but I also wonder if anybody has seen anyone do cylinder deactivation when throttle is in the home position? Any other ideas?