Are you aware of any mechanical longevity studies associated with auto start stop? Since oil pressure falls off it means increased bearing contact. And historically starts represent 70%-80% of engine wear.
Also, anything on starter life? To maintain existing starter longevity requires a starter to function an order of magnitude or more than without auto start stop. Where did this longevity originate or are we all buying starters 10x+ more frequently? Did the price of these next gen starters explode?
I'm not aware of any, but I do know that start stop does put excessive wear on starters just from the concept. Unless they are putting in some advanced starters (they aren't) it will be a part you will end up replacing more often.
The start stop technology from where you do a real start versus a idle start is different from what I've read. The idle start isn't as rough on the starter. Maybe that is why you aren't seeing so many starters replaced. In the longevity of it you will notice a difference though versus a normal vehicle without the technology.
There may be studies that compile the data in a more fashionable and complete data out there. Interesting concept to bring up. I'm sure it isn't the only part that is being stressed on a system though.
The idle start isn't as rough on the starter.
This is correct as the engine is stopped at TDC, ready to immediately begin the combusion cycle. It is a short cycle on the starter compared to a cold start. However, presumably the cylinoid still activates, which also has a limited life cycle. Maybe the cylinoid is the intended consumable?
If you happen to come across something to share, it would make for a nice post. Would certainly be appreciated.
Thank you.
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