Around 2.6-28 litres. Some turbo variants take 3.5 litres. Fill up, drive the car and cross check dipstick. Top off if required. Using Kixx CVTF Fully synthetic and so far 1000 kms in and got my lost acceleration back.
Also update on knocking: I checked my plugs and one spark plug had its tip bent. Not sure how that happened. Mechanic says it can happen under high compression. Readjusted the gap and knocking disappeared.
And if you are wondering how to check if your cvt oil change is due, take a whiff of the oil on the fill plug. If it smells pungent or burned, replace immediately. My oil came out pink but was giving a burned odor smell as well as rpms not climbing down efficiently on eco mode as they used to. Now it's in full grip and the difference is in smoothness and quirkier accelerations.
@kashif.razee thank you for the offer but I already changed it now.