If you're reading this, you probably know engine coolant and oil should never mix. The coolant effectively negates the lubricating effects of the oil, which subsequently negates the engine's ability to keep running. That's what happened with this turbocharged 3.0-liter Audi V-6, which was still largely new when pulled from a 2022 S5. Now, it's a mechanical lump filled with an oil-coolant cocktail that resembles a chocolate milkshake.
