Frequently Asked Questions
Re-Refined Base Oils: Understanding RRBO Quality, Performance and Value
STAR QUESTION:
IS RE-REFINED BASE OIL THE SAME AS RECYCLED OR RECLAIMED OIL?
This edition’s FAQ section examines re-refined base oils (RRBO), from how used lubricants are transformed into base oils to quality, performance, feedstock suitability, and cost. It provides practical insights into RRBO production, application, and its growing role in circularity and sustainable lubricant manufacturing.
Q What exactly is a re-refined base oil (RRBO)?
A RRBO is a base oil produced by processing used lubricating oil to remove contaminants, degraded materials and unwanted components. Advanced re-refining restores the recovered oil to a quality suitable for lubricant formulation, with some processes producing Group II and, in certain cases, Group III base oils.
Q Is re-refined base oil the same as recycled or reclaimed oil?
A No. “Recycled” is a broad term covering different forms of used-oil treatment. Reclaimed oil may undergo basic filtration or contaminant removal, while re-refining uses more advanced separation and purification processes to recover a high-quality base-oil fraction.
Q Is RRBO lower quality than virgin base oil?
A Not necessarily. RRBO quality depends on feedstock, collection practices, re-refining technology and quality control. Modern processes can produce RRBO with properties comparable to virgin Group II base oils. However, each product must be evaluated against the required specifications.
Q How is used lubricating oil converted into RRBO?
A Used oil is collected and treated to remove water, fuel, solids and other contaminants. It can then undergo processes such as vacuum distillation and hydrotreatment to separate and purify the base-oil fraction. The resulting RRBO is tested before being used in lubricant formulations.
Q Does using RRBO affect lubricant performance or equipment life?
A Not inherently. Performance depends on the RRBO’s quality, the formulation and whether the finished lubricant meets the required industry or OEM specifications. Proper additive compatibility and performance testing are essential, particularly for demanding automotive and industrial applications.
Q Can you tell whether a lubricant contains RRBO just by looking at it?
A No. Appearance, colour and clarity cannot reliably determine whether a lubricant contains RRBO. Laboratory analysis and, where required, performance testing are needed to establish its composition, quality and suitability for an application.
Q Are all used oils suitable for re-refining?
A No. Feedstock quality is critical. Used oil contaminated with water, fuel, chemicals or incompatible materials can reduce processing efficiency and affect the quality and yield of the resulting base oil. Effective collection, segregation and storage are therefore fundamental to successful re-refining.
Q Is RRBO cheaper than virgin base oil?
A Not necessarily. RRBO economics depend on used-oil availability, collection and transportation costs, processing technology, plant scale, energy requirements and prevailing virgin-base-oil prices. Efficient collection and established re-refining infrastructure can improve its commercial competitiveness. .
Re-Refined Lubricants Advancing Sustainable Industrial Performance Worldwide.
SOURCE | MAGNIFIC