[rogerspeed]

The detail in the owners manual for a 72 2 liter states the engine oil capacity "in the circuit (pan, filter and passages) is 7.8 qts" (U.S.A.)

 

[rogerspeed]

My practical experience on changing the oil in the 105/115 nord is 7qts to start with and then add about 1/2qt once run for the oil filter, the other 3/10 might be in the cam troughs? Don't you use Imperial (english) qts in europe, a larger unit of measure. In the US, as suggested, I'd add at least 7qts to the dry engine (bat-wing sump) wait a while and mark the dipstick