I am due for the 26,600 mile (42,000 Km) service. The maintenance manual says that at 26.6K, a valve clearance check and adjustment needs to be performed.
I called my dealer and was estimated 3.5 hours of labor and $400. From his description of what should be done, it seems that they'll perform a 4,000 mile service. "It is a very thorough service", he said.
Does this seem reasonable?
Dave