Had PTU fluid replaced at local Aamco. Cost was $150 + the fluid I had them use. Car is a 2014 model with 31k mi. Fortunately it was not sludgy & there was some metallic material on the plug but not bad. They advised me one of the turbos is leaking oil- aargh . Bought the car at Carmax along with their warranty. Took it to them today. Hopefully it's approved for replacement or I'm going to be hot. They did provide a rental car at their expense.