I have a 2011 Xterra with 150,000 miles. Other than routine maintenance, she has been a champ and nothing else has been done. I drive off-road to get to a fly-fishing spot and I driver every week between SoCal and Las Vegas, across the desert. So I don't want her to just stop somewhere. Question is, what things should I replace that can just cause her to stop running (i.e.: not give a warning). Thanks for your thoughts.