Cold flow improvers and wax anti-settling additives

Cold flow improvers are evaluated for changes in low-temperature filtration and flow behavior, including cold filter plugging point and pour point. Response depends on fuel composition and should be established with representative samples.

Wax anti-settling additives are considered where wax dispersion during cold storage is also important. They can be evaluated alongside a cold flow improver.

• Blend components and existing cold-flow results
• Expected storage and handling temperatures
• Observed wax settling or filter-blockage behavior
• Blending sequence, mixing conditions and other additives

Compare untreated fuel, cold flow improver treatment and any proposed combined treatment. Include a wax-settling assessment where storage behavior is part of the operating concern.

Use the results to define the treatment recommendation and verification plan. Interpret laboratory cold-flow results within the intended operating conditions.