Expansion tank cap140?
 

Much talk about the OEM cap (200) having performance faults. I've not had the pressure fault. Only cap I've ever used... OEM. Hot summer is here.
Well I just installed the 140 pressure cap on me e83...let's see if there are any negative results?[emoji1696]

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I purchased 2 caps initially I used one on my car and the other intended for my wife's car. I never installed the second cap on the wife's car...for almost 2years. Her car continued with the 200pressure cap.
This unintentional experiment resulted in...?
No problems what so ever...long trips, short trips...hot,cold weather all equaling to no problems and nothing out of the ordinary.

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