10,000 gal · 96" · rounded ends

Belly 35–65%: most gal per inch, level rises slowlyCurve 75–89%: level rises up to 2× faster90%: drop-tube shutoff — throttle back95%: max safe fill — leave room for hose drain
Fill riserOffset per 1" of tilt
Low end−0.5 in
¼ from low end−0.25 in
Center0 in
¼ from high end+0.25 in
High end+0.5 in
ProductPer °F0 gal drop
Gasoline0.069%0 gal shrink
Diesel0.046%0 gal shrink
Warm rack fuel cools in the tank, so the ATG often settles lower 30 minutes after the drop.
Manifolded tanks (siphon bar): the tank you drop into can sit a few inches higher than its twin during a fast dual-hose drop. The siphon evens them out after the drop. Watch the receiving tank's level, not the pair total, and stick both tanks after they settle.