Quote:
Originally Posted by Fat Charlie
They think 40 is cold.
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Hey, hey, 40 IS cold! (from Norcal lol)
I noticed in my parents' new Porsche, the stop-start system will engage at 160F coolant temp, oil temp seems to not matter. The cold idle speed is only barely over 1000rpm though, unlike my Toyota which will idle at 1600rpm when cold.
I think it may have to do with the claimed electric oil pump though. I'm guessing it's a secondary pump to add pressure at low speeds since the oil pressure is very much rpm dependent.
I don't EOC generally, but I do shut off the engine if there's more than 15 seconds that it needs to idle (and I have no passengers), however I haven't done that with a cold engine before, but maybe I should considering how much fuel it burns idling at 1600. Plus, my 1ZZ is more likely to be "totalled" from the oil control rings than anything else.