Deep Throat - S1-E2
Revealing mistake: Mulder pulls away from the hotel after telling Scully he is going to shower and then they'll leave. The tire marks from previous takes are visible on the pavement.
Deep Throat - S1-E2
Revealing mistake: During the hard braking due to avoiding the collision with the unknown agency cars, notice that there are stunt people sitting in the car instead of Mulder and Scully. (00:21:15)
Answer: He was being facetious. He doesn't specifically know that information, he was merely giving examples of the types of information he has access to.
I think so too.
lionhead