BTW - It has just over 50,000 miles on it.
It has never missed a service and I have done everything on time inclusive of oil changes, air filter cleaning (K&N), lube, tranny, diff, transfer case (every 10000 miles). It is an automatic and it had the exhaust manifold replaced so it does not have that issue that is common to many XTerra's in that the original manifold leaks.