SPL Labs
Overview of the Test:
SPL Labs performed ASTM D6079 testing to evaluate the lubricity of diesel fuel treated with DF5. Lubricity is critical for protecting high-pressure fuel injection systems and ensuring long-term engine durability, particularly under heavy-duty or high-stress operating conditions.
Testing & Findings
Test Procedure and Parameters:
Samples tested: standard ULSD vs. DF5-treated ULSD.
The High-Frequency Reciprocating Rig (HFRR) method was used to measure wear scar diameter and assess lubricating properties.
Additional parameters such as viscosity, density, and cold-flow performance were monitored to ensure fuel quality was maintained.
Key Findings:
Improved Lubricity: DF5 reduced wear scar diameter by 11%, providing enhanced protection for fuel pumps and injectors.
Consistent Fuel Properties: No negative impact on viscosity, density, or flow characteristics was observed.
Enhanced Equipment Reliability: Improved lubricity reduces mechanical wear, lowering maintenance costs and extending engine life.
Operational Benefits: DF5-treated fuel maintained stability under variable temperature conditions, ensuring consistent engine performance.
Why It Matters for Operators
Better lubricity directly translates to less engine wear, fewer repairs, and longer-lasting fuel system components. Fleets using DF5 can expect reduced downtime and improved overall operational efficiency.
Conclusion
The SPL Labs ASTM D6079 test demonstrates that DF5 effectively enhances diesel fuel lubricity while preserving all critical fuel properties. This makes it a reliable, drop-in solution for operators seeking both protection and performance in diesel engines.