Oil Additives... Yes or No???

[GoldOxide_imp]

I always have the problem of putting the right amount of oil in the engine.
lately I have put Lit. 3, 85 of Motul 7100 10w30 and the level, even after 1 hour, is all full, to see the level go down to the upper limit I have to wait 1/2 day when the engine is completely cold.
To get the right level when the engine is warm, how much oil do you EXACTLY put?
Thank you

On the CB1100 I do what you started to do:

Add oil to cold engine until sight glass range is satisfied (i.e. somewhere between the lower and upper markers). I don't fill to the upper indicator.

Run the engine until hot, turn off, go make a sandwich and salad with olive oil ( <-- maybe add some balsamic vinegar to the oil ), eat the sandwich, wash it down with something satisfying, come back to the lump, check the level, and top up to near the upper indicator - if necessary.

Then, Bob's yer uncle. I never over-think this procedure. It is not a procedure that is technically precise and needs not be.