Did oil change!
 

Got car serviced. Changed the oil and now instrument cluster bips from time to time telling me to reduce oil level. Ihave a suspension they have put 9 quarts instead of 8.5 because i counted empty bottles there were 12 total in the box and 3 of those unopened. Now should i worry or let it go its only 1/2 a quart. And im not really sure may be the guy poured half out of the last bottle. Don't really trust electronic sensors... I did a few electronic measures through the menu and it told the oil level is ok but when I drive it beeps... Sometimes it beeps sometimes not.

I changed my own oil and once got the same alarm after parking on a slope. If it is blinking but not staying on, I would just drive it and you will use a small amount of oil eventually and it will quit.

I do 8 quarts per change...the sensor never goes off in either direction. I do not suggest you do this, just giving my experience.

yes to my experience 7.5 litres are good, i tried to add less than 0.5 litre it turned out there was 8.3 in the engine, either way its a risk you can take and im still trying to run the car in order for the car to use the oil and get lowered but next time ill pour 7.5 litres and add if its low.

I did the oil change 2 months ago, I did put 8.5 quarts at first, but end up taking out 1 quart. 7.5 is the correct level for my car