it was close to 50% more than the max line right after filling the EO. i raised a concern to the mechanic and asked him to suck out. he was adamant that it was fine and i shouldnt worry about it.
i work in oil n gas so when I see a max line, I follow the max line because why the heck would there be a MAXIMUM indicator if it is fine to go beyond the max, right? but in this case, im not the expert so I trusted him even though my gut told me I should have insisted he pump out the excess.

but yeah, its true that the seals were probably not in the best condition anyway. but I posted this anyway so that others can learn from this and potential further the longevity of their own seals by simply insisting on following the max indicator.

no, bro. if we are talking about >20 year old engines you might be ok to overfill the EO.
modern engines are designed to tight tolerances and overfilling can cause pressure build-up and damage the seals and gaskets.

there is no easy way to know how much EO is too much so the best policy is to just follow the indicators.

If overfill 4mm-5mm, still ok?