 Took 2013 Juke, purchased new, with 42,000 miles to Courtesy Nissan in Richardson, TX in September 2015 because the engine light came on and experienced diminished performance.  The dealership examined the car and reported the oil pan was full of sludge and metal.  Upon initial findings the dealership claimed the factory warranty and extended warranty were in effect.  Later the dealership wanted a signed statement that I would cover costs of the engine tear down ($3,000 ) if further examination determined that a factory defect not was the cause of the sludge build up.  I would then need to replace the engine at a cost of $12,000 plus.  The dealership did not report of an sludge or metal when I had the oil changed 5 months earlier.  The car has been maintained with regular oil changes.  No sensor alerted me of a low oil condition until the engine light came on in September.  It is disappointing that a 2 year old car with only 42,000 miles doesn't live up to the Nissan reputation.  Thought I was purchasing a quality car.