How much oil does a 1986 Mercedes 420 sel hold?

The 1986 Mercedes 420 SEL typically holds about 8 quarts (approximately 7.6 liters) of engine oil, including the oil filter. It's important to check the owner's manual for the specific model, as oil capacity can vary slightly depending on the configuration and whether the oil filter is changed. Always ensure to use the recommended oil type for optimal performance.