I have been driving XC60s for 8 years now and have never had to put any oil in the car ever, and IIRC even the 'technicians' dipstick has been removed.
You trust the fuel gauge on the car, you trust the temperature gauge on the car (assuming your model has one) and a host of other things that the car manages more accurately and more frequently that you ever could - just let the car get on with its thing, if there is an issue with the oil level the car will give you a warning quicker than you will by checking a dipstick
