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While you wait for a valve cover gasket repair, make sure you keep topping off the oil. Running the engine without the proper amount of lubrication can cause the engine to cease and fail.
Hydrolock can be extremely harmful to an engine and may require its replacement entirely. However, the velocity you were going is what usually determines the extent of the damage.
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As Hillsons said, cold starts are hard. So are warm starts, but to a lesser degree. The engine has no oil pressure when off, and starting it again causes very slight but very bad metal on metal contact. When warm this is much less contact than when cold, as the oil is usually primed and circulated. When cold the oil settles a bit and moves away from bearings.
If you are really interested, you can get a “Turbo timer”. It keeps the car running when the key is removed. They are tied to the parking brake or other systems so that if the car moves at all the engine shuts off. It would be perfect in your situation.
Photo: Make your own two-liter engine! If you find it hard to visualize a two-liter engine, try this. An average coffee mug holds about 0.3 liters and is roughly the same dimensions as a typical car cylinder. Six of these mugs lined up give you a volume of about two liters—the total displacement of the engine in a large family saloon.
The answer is: What happens next is very predictable; Coca-Cola clogs up an engine, which will ruin your engine. When Coke’s chemical composition is mixed with the gasoline in a car, it might turn the whole mess into a caustic sludge that would clog up an engine. That’s why Coke or any soft drinks might damage your car engine.
Suggested by Car-mi-Car-zee.