Many big ticket ocean yachts have big ticket diesels which all have the oil removed by suction. No access to the drain plugs which set too far in the bilge.
I still crawl underneath my cars as I get a chance to see what else may need tending to as well.

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Gary
Experience is something you get, Just after you needed it....
'99 E300 295K, '83 300D 220K, '75 240D 185K sold
'80 MCI Bus Conv DD 6V92TA, w/4 cyl. Kubota diesel GenSet 12.5KW