So, I did not notice before, but as I was preparing for departure from SJU to HOU on an ad-hoc, I realized that MTOW differed alot from the manuals PMDG supplied to pages like www.fuel.aerotexas.com and even wikipedias own 737NG page.This is what the different pages says about the B737-600 opertaing weights:PMDGMTOW 127000 lbsMLW 120500 lbsMZFW 114000 lbsaerotexasMTOW 145500 lbsMLW 120500 lbsMZFW 113500 lbsWikipedia (http://en.wikipedia.org/wiki/Boeing_737_Next_Generation)MTOW 145500 lbsMLW 121500 lbsNow, i never use wikipedia for such info, but had to make a search too see if there actually was an article related to the 737NG weights and so on.The FMC tells me that on the payload pages that MTOW is about 145 K lbs.Makes me wonder what is correct and not?