Fuel temp freeze on MD11

After reading posts of fuel freezing at high altitudes on the MD11 I have been trying all winter trying to make it happen. Even flying up in the arctic regions with SAT of -60C the fuel tank still stayed above -40C. I even sat on the ground at Barrow, AK at -44C for 30 min and took off and it warms up on climb out. Well since the real world wx was not going to do it I made ASA give it to me. -90C at FL200. I started a descent into Barrow and as tank temps hit -42C the left flamed out followed by the right. To avoid a tragedy I went and bumped the temp back to normal. The tail engine manged to stay running and I got restarts on the left and right descending thru 3000 making a safe landing in Barrow and cleaned out my shorts. Thanks PMDG for one really fantastic feature. Can not wait for the NGX! John