Cant really tell, need more info like ambient temp and if there was a temp change during your test. ie: was in a cold garage and then was brought out into ambient 20*F warmer....or vice versa.



Are you located in Virginia? Your forum location says Europe, but your video title is a local phone number for me.


Since the pressure change at the fuel cap is subjective, I will pay closer attention on my car. I have to fuel in the next couple days and will share.

Saw your other 4 vids, what is an "MW pump" ?
I noticed fresh yellow antitamper markings on the Delivery valves and Alda, assuming maybe "Injection Pump".