Hello,
8.8 quarts is 8,32791 litres. That seems to be a little bit too much, even with a new oil filter. Maybe they cashed up 8.8 quarts but put in less.
Did you check the oil level with the dip stick on a leveled ground?
Can you provide us with a video of the tapping noise and describe exactly where it is coming from?
Regards, Markus
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