Hey guys my car is xf 2009 diesel 3000
so.... i decide to change the oil to my friend who understand these cars and know everything about them. The oil change cost me less but i have a question.
He put around 6,5 litres in the engine and now i was checking the oil level (electric stick) and it said: OIL level OK but wasn`t full enough.
Should i put some extra oil to fill the bar or not?

The oil is same used in authorized service castrol c1

 

I do but anywhere in the "level OK" area is fine. Only add about 1/3 qt. at a time then check to top it off, you don't want to over fill.

 

well in my accounts we have putted around ~ 6,8 liters
so i should put all of the last tube - and it will be 7 liters.

 

No leave it alone. The graphic on the bar is not accurate. If it says level ok do not add any more. Over filing is dangerous especially on the 3.0d