Will auto shut off fuel nozzle work on gravity tank?

In general, automatic shut-off fuel nozzles are designed to work with pressurized fuel systems and may not function as intended in gravity-fed systems. The automatic shut-off mechanism relies on the backpressure created by the fuel entering the tank to trigger the closure of the nozzle when the tank is full. In gravity-fed systems, where fuel flows by gravity without the aid of a pump creating significant backpressure, the automatic shut-off feature may not work reliably.

If you are using a gravity tank, it's important to exercise caution during the fueling process. Without the backpressure normally present in pressurized systems, there may be a risk of overfilling the tank and causing spills. It's crucial to monitor the fuel level closely and manually shut off the fuel flow when the tank is full.

Some gas stations may have specific nozzles or dispensers designed for gravity-fed systems, and these may lack automatic shut-off features. Users should be attentive and follow any safety guidelines provided by the fueling station when using gravity-fed systems to avoid overfilling and potential safety hazards.