This is relevant,
I contracted as a manager at a reputable mining machinery diesel maintenance company not too long ago and one of the mechanics did what was a minor service (dropped fluids, spun filters) it was a last minute "need the truck back on the road ASAP" job. The young fella did the service and in good time!!!
Truck gets picked up, 20 minutes later and I get a call, " the truck has exploded oil all over the highway"
Anyway to cut a really long story short, the mechanic put hydraulic oil in the engine and over filled it by twice the normal amount, truck took ~19L and he put ~40L into it. Luckily the head gasket was the weakest link and it fortunately didn't throw a conrod!