I now realize that dinky setup was pointless. The problem was I wasn't thinking, and I took the picture in creative based on my real setup in survival.
I have a fuel room full of tanks, and wanted the tanks to transfer fuel to more tanks above my TE machines. That whole idea was dumb, and I realized I should just run pipes from the main tanks straight to the machines without the 2nd stack of tanks.
In my main fuel room I now have emerald fluid pipes with combustion engines under them successfully transferring fuel to my machines.
Now all I have to do if the engines run out of fuel is go to the main fuel room, hit the lever, and let it pump for a few seconds. That's all it takes to completely fill all the engines ^-^