Cursa Fuel Co. / Learn / Diesel storage

Fuel Storage

How long does diesel last in storage?

Months to a year or more, if you store it right. Less if you do not. Here is what shortens diesel's life and how to keep stored fuel ready to burn.

Diesel ages, especially when it sits

Diesel does not last forever in a tank. Stored well, it holds for roughly 6 to 12 months, and longer with stabilizers and disciplined tank practices. Stored badly, it can degrade much faster, and the failure tends to show up at the worst time: when a standby generator finally gets called and the fuel feeding it is sludge.

What shortens its life

Standby fuel is the fuel most likely to fail. The diesel in a backup generator can sit untouched for a year, then get asked to perform during the one event it exists for. Untested, untreated standby fuel is a quiet single point of failure.

Keep stored fuel ready

For fuel that sits, the answer is regular delivery to keep it fresh, treatment to slow degradation, and fuel polishing to clean what has already aged. We help operations manage standby and stored fuel so it is ready to burn the day it is finally needed.

Ready when you are.

Fuel delivery and emergency fueling across Upstate South Carolina and the Southeast. Scheduled service, emergency response, and everything in between.

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