And then the oil is transferred to the CE top side collision protection tanks.
So do tell me how you transfer oil to higher tanks without pumps.
And those tanks need to be empty to be able to pump oil into them. So your tanker is running half full all the time, except when there is a failure, provided its not a big failure.
Anyone using your tankers with a full load will be contravening safety. Anyone using your tankers safely (Safely in the right conditions that is) can only use half of the tankers capacity.
Literally no upside to your design.
You keep referring to some spam site, I presume its because you dont have an answer to these problems.