Cause: Total volumetric capacity of the fuel containment vessel[span_6](start_span)[span_6](end_span).

Do: Right-size storage vessels to minimize long-term stagnant holding times[span_7](start_span)[span_7](end_span).

Don't: Over-dimension tank capacity relative to regular fuel turnover[span_8](start_span)[span_8](end_span).

Reason: Larger physical volumes scale total thermal inertia and bulk liquid storage mass[span_9](start_span)[span_9](end_span).

Cause: Vertical height dimension dictates tank surface-area-to-volume ratio ($A/V$)[span_11](start_span)[span_11](end_span).

Do: Use deeper tanks to reduce top surface area exposed to oxidation and solar flux[span_12](start_span)[span_12](end_span).

Don't: Store fuel in shallow, wide tanks with high exposure surface areas[span_13](start_span)[span_13](end_span).

Reason: Shallower tanks increase relative headspace interface area, accelerating mass transfer[span_14](start_span)[span_14](end_span).

Cause: Percentage of total tank volume currently filled with liquid fuel[span_16](start_span)[span_16](end_span).

Do: Maintain high occupancy levels (>80%) to minimize ullage headspace[span_17](start_span)[span_17](end_span).

Don't: Keep tanks at low occupancy (<30%) for extended periods[span_18](start_span)[span_18](end_span).

Reason: Low occupancy creates large vapor headspace, supplying higher total moles of oxygen for oxidation[span_19](start_span)[span_19](end_span).

Cause: High storage heat speeds up chemical reaction rates inside the fuel tank[span_21](start_span)[span_21](end_span).

Do: Keep fuel tanks shaded, insulated, or cooled below 30°C[span_22](start_span)[span_22](end_span).

Don't: Leave fuel storage tanks exposed to direct sunlight or hot engine bays[span_23](start_span)[span_23](end_span).

Reason: Heat provides the energy required for fuel molecules to break apart and form sticky sludge[span_24](start_span)[span_24](end_span).

Cause: Air trapped in the empty space above the liquid fuel inside the tank[span_28](start_span)[span_28](end_span).

Do: Keep tanks full to minimize air space, or seal with inert nitrogen padding[span_29](start_span)[span_29](end_span).

Don't: Leave tanks half-empty for long periods during warm weather[span_30](start_span)[span_30](end_span).

Reason: Oxygen reacts directly with fuel molecules to form dark peroxides and acids[span_31](start_span)[span_31](end_span).

Cause: Unstable chemical components naturally present in cracked refinery fuel blends[span_35](start_span)[span_35](end_span).

Do: Source high-grade refined fuel with low olefin levels for long-term storage[span_36](start_span)[span_36](end_span).

Don't: Store low-grade or unrefined fuel blends without stabilizing additives[span_37](start_span)[span_37](end_span).

Reason: Olefins contain double bonds that easily break open and link together to create thick gum[span_38](start_span)[span_38](end_span).

Cause: Chemical additives added to neutralize chain-reaction free radicals[span_40](start_span)[span_40](end_span).

Do: Dose fuel with recommended fuel stabilizer antioxidants before long storage[span_41](start_span)[span_41](end_span).

Don't: Store fuel for months with zero stabilizer dosing[span_42](start_span)[span_42](end_span).

Reason: Antioxidants catch reactive molecules before they can clump into engine-clogging deposits[span_43](start_span)[span_43](end_span).

Side Effect: High concentrations (>75 ppm) cause additive over-saturation and particulate precipitation[span_44](start_span)[span_44](end_span).

Cause: The total duration fuel is allowed to sit stagnant inside the tank[span_46](start_span)[span_46](end_span).

Do: Rotate stored fuel inventory regularly on a first-in, first-out schedule[span_47](start_span)[span_47](end_span).

Don't: Allow untreated fuel to sit idle past its safe holding window[span_48](start_span)[span_48](end_span).

Reason: Chemical decay compounds continuously over time; longer exposure means greater quality loss[span_49](start_span)[span_49](end_span).