I noticed in the systems manual (which I almost have memorized) there is an option for 2 extra aux tanks at around 13.0 each. Adding all the quantities plus the options equals around 281.0 but the load manager can only fill to 256.2. No big deal really, I don't see an option for the extra tanks anywhere. It would be nice to reach Dubai from KSFO but I will take Zurich instead as a fuel stop.I probably could not stay awake long enough to burn that much fuel anyway.

Would be nice to fly SYD-LAX without a fuel stop in HNL. I don't think that the MD-11 was programmed with the aux tanks in mind.But damn, you memorized the entire manual?!

I was just kidding about the memorization part. Getting there, but it will be a while.