even if it did you would never physically feel it, nor is there any proof that it even does...do you have documentation to show this? Ive ran this tank almost completely empty 10-20 times its never hesitated or stumbled. The more likely candidate is regen, nothing to do with fuel heat at all.....im guessing your another believer that going below 1/4 blows fuel pumps as well.....ive tried that theory its not possible..225k on a cr 2.0 with 90% of tanks below fuel light never a pump issue....if it were true then it would happen you cannot claim it does when someone can do it time after time after time. Heat is either going to kill it or not, or im the luckiest guy alive 200 times. Water and poor fuel quality kill hpfp nothing more, running low on fuel is just fine....runing out mind you i wouldnt advise but ive never been there.
It could even be your fuel source, having driven as much as i have in common rails i can safely say every tank of american fuel i used made my car act different, if it was stock it would miss and surge...tuned it would smoke like a train....strong believer the fuel quality is just not upheld enough down there, fuel up here seems to be better and more consistent, this is also shown by the huge difference in hpfp failures there and up here