Sounds like a fair call. I will let him know the general consensus and direct him to view this particular forum discussion. I did a bit of searching, please see attached (hopefully it will attach otherwise refer page 1-48 of the TAF manual), straight from the TAF manual regarding care and maintenance and more specifically the paragraph regarding lubrication requirements and the type used. I can only assume, the fact that the quote specifically mentions lubrication that they would be using the correct type and amount on the specific areas mentioned in the manual.
Thanks for all the input, I'm sure this will put his mind at ease.