Richard 
2015 Nissan NV Cargo Van 2500 S 3dr Van (5.6L 8cyl 5A)
Nissan Dealers Will Not Service their own product
 Before you buy a Nissan NV2500 be aware that there are only certain Nissan dealerships that are allowed to service the vans. I have been turned down at 2 local Nissan dealerships in Southern California for oil changes.  If the Dealership is not a "Commercial Dealership" they cannot even change the oil. The ludicracy of this is that the Titan and the Van have the same drive train.