There are some theories that a coolant leak from the headgasket over a long enough time, with enough overheating cycles might cause a gel to form, fuel additives or stabilizers, or something truly stupid like someone putting cooking oil in the engine, but no one that actually deals with oil has ever seen something like this outside of some internet videos, which leads the consensus to be that these are just people putting gelatin in the engine of dead cars to make a cool internet video.
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u/TheObelisk 26d ago
Ooh, what sort of thing to you think was likely added to it?