A few months after getting an oil change, this customer started seeing a “oil level too high” message.
We measured the oil at 11.5 quarts – 3.5 quarts too much! It reeks strongly of fuel, and doesn’t behave like viscous oil when agitated. It’s fuel!
Eventually we found that both high-pressure fuel pumps were leaking down inside the valve covers. Did I mention the car ran like poo?
Obviously, after repair, it runs like a show car.