Pete, sorry for the late reply , I didn't realize there were more responses. Yes, I used part # 31325709 as mentioned above. I used a digital manometer in Kpa mode fitted to oil fill. I took the measurements before and immediately after replacing the banjo bolt.

I used the filler cap. I ported a tube through the filler cap used with the volvo style funnel and cap combo as it conveniently has a hole already in it. I took readings initially from both the filler cap and dip stick tube and they were both the same.