Why Do I Need a Diesel Fuel Stabilizer for Bulk Tanks?

Diesel fuel in bulk tanks can sit for weeks, months, or longer before it is used. During that time, fuel can be affected by oxidation, water contamination, heat, microbes, and sediment formation.

Why Stored Fuel Changes

Fuel storage problems are often caused by a combination of time, oxygen exposure, temperature swings, water, and contamination. As fuel ages, it may darken, form gums or sediment, plug filters, and perform poorly.

Best Practices for Bulk Tanks

• Keep tanks as clean and dry as possible.
• Reduce water entry from condensation, leaks, or poor caps and vents.
• Inspect and drain water separators when needed.
• Use a fuel stabilizer before long-term storage problems develop.
• Rotate fuel when possible instead of letting it sit indefinitely.

Where Preserve Fits

Opti-Lube Preserve is designed for customers who need fuel stability for stored diesel. It is a good choice for bulk tanks, standby equipment, seasonal equipment, and fuel that may not be used quickly.

Need help choosing? Start with Opti-Lube diesel fuel additives or review our FAQ for dosing, storage, and compatibility questions.

Extending the Storage Life of Diesel Fuel

Diesel fuel does not last forever. Over time, oxidation, water, heat, microbial activity, and contamination can cause diesel fuel to darken, form sediment, plug filters, and lose performance.

Main Causes of Storage Problems

• Oxidation from exposure to air.
• Water from condensation, leaks, or poor tank maintenance.
• Heat and temperature swings.
• Microbial growth at the fuel/water interface.
• Dirt, rust, or other tank contamination.

How to Help Stored Fuel Last Longer

• Keep fuel tanks clean and dry.
• Limit water entry and drain water when needed.
• Store fuel away from excessive heat when possible.
• Use a stabilizer before fuel problems develop.
• Rotate stored fuel when possible.

Where Preserve Fits

Opti-Lube Preserve is designed for stored fuel applications, including bulk tanks, backup generators, seasonal equipment, and fuel that may sit for extended periods.

Need help choosing? Start with Opti-Lube diesel fuel additives or review our FAQ for dosing, storage, and compatibility questions.