Yudu County, Ganzhou, Jiangxi, China sales3@liwei-chem.com 748718781@qq.com
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Base Oil

    • Product Name Base Oil
    • Chemical Name (IUPAC) Lubricating oils, petroleum, C15-50, hydrotreated neutral oil-based
    • CAS No. 64742-65-0
    • Chemical Formula CnH2n+2
    • Form/Physical State Liquid
    • Factory Site Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry sales3@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    616504

    Productname Base Oil
    Viscosity Varies (low to high, depending on grade)
    Color Clear to pale yellow
    Flashpoint Typically 200-250°C
    Pourpoint -15°C to -30°C
    Density 0.85–0.91 g/cm³ at 15°C
    Sulfurcontent Low to moderate
    Kinematicviscosity 40c 32–150 cSt (varies by grade)
    Totalacidnumber < 0.05 mg KOH/g
    Refractiveindex 1.47–1.49 at 20°C
    Watercontent < 50 ppm
    Appearance Bright and clear
    Odor Mild, petroleum-like

    As an accredited Base Oil factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Base Oil is packaged in a 200-liter blue steel drum, securely sealed, clearly labeled with product details and safety instructions.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for Base Oil involves securely transporting up to 20 metric tons in drums or flexitanks, ensuring leak-proof, safe delivery.
    Shipping **Shipping Description for Base Oil:** Base Oil is typically shipped in bulk via tank trucks, railcars, ISO tanks, or steel drums, depending on volume. The product is transported at ambient temperature, protected from moisture and contaminants. Containers must be well-sealed and labeled, complying with relevant safety and environmental regulations.
    Storage Base Oil is typically stored in airtight, corrosion-resistant steel tanks located in well-ventilated areas, away from direct sunlight, heat sources, and incompatible chemicals. The storage tanks should be clearly labeled, equipped with secondary containment to prevent leaks or spills, and regularly inspected for integrity. Proper grounding and bonding are essential to minimize the risk of static discharge during handling.
    Shelf Life Base oil typically has a shelf life of 3-5 years when stored in sealed containers, away from moisture, heat, and contaminants.
    Free Quote

    Competitive Base Oil prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@liwei-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615365186327

    Email: sales3@liwei-chem.com

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    Certification & Compliance
    More Introduction

    Base Oil: The Foundation of Reliable Lubrication

    What We Deliver as a Base Oil Manufacturer

    Base oil is not just the essential ingredient in lubricants – it’s what shapes their performance from start to finish. Decades spent refining, upgrading, and overseeing production allow us to see firsthand how even the smallest variation in feedstock or process turns into tangible results in a finished oil. In our plant, every shipment reflects choices made at the distillation tower, the hydrocracker, the vacuum unit. The oil that leaves our gates holds up in real-world machines, not just in a lab.

    Our principal base oil models include Group I, Group II, and Group III variants, all derived from high-quality feedstocks. Group I oils come through solvent extraction and dewaxing, which preserve a broader range of molecule types. The result: a product compatible with older engine and industrial formulations, often preferred where high solvency and compatibility with additives matter more than ultimate oxidation stability. Group II and Group III base oils, which pass through hydroprocessing and hydrocracking units, give a higher degree of molecular uniformity and far lower sulfur and aromatic content. These more refined oils see use wherever low volatility, high stability, and long oil-life expectations are critical. We keep our cuts narrow, typically meeting the standard viscosity grades customers in the blending sector require—from light solvent neutrals to heavy neutrals.

    Specifications like viscosity index, pour point, sulfur content, and volatility come from the choices we make inside our process. We lean on feedback from engine manufacturers, hydraulic system operators, and the grease sector because real-world field failures or successes say more than lab numbers. In practice, that’s why we batch-test every lot, maintain steady stocks of multiple viscosity grades, and support customers who operate from icy northern climates all the way to tropical marine environments.

    How Base Oil Performance Stays Consistent

    Production consistency matters. Feedstock quality can shift with the market or season, so our QA teams pull samples by the hour, not just once per shift. Corrosion, wear, and deposit issues often trace back to a change in crude origin or a shift in temperature control during refining. In our industry, these things show up months later as equipment downtime or complaints from long-haul truck fleets. Tracking those issues back to our own refinery logs revealed a lot: keeping blending tanks clean, updating process instrumentation, and even small adjustments to reboiler temperatures pay off over time. Every customer relies on that transparent process history. That’s why we invest in near-line analytical tools for rapid decisions and keep long retention samples.

    By working closely with additive package suppliers, engine builders, and lubricant blenders over the years, we’ve learned how tiny changes on our side can lead to alarm bells from users. Without robust communication, costly recalls or warranty claims pile up. We document and tag every shipment, provide traceable certificates, and visit users, refineries, and blender sites to see how our oil performs under real-world duress. This might sound routine, but it underpins credibility in a crowded market.

    Where Our Customers Put Base Oil to Work

    With years of direct technical feedback, we see our oils used in everything from the classic mineral-based diesel crankcase and transmission fluids to ultra-modern, low-viscosity synthetic blends for new passenger cars. Around the clock, our base oils keep massive turbines, textile machines, heavy-duty diesel engines, and offshore platforms running. On the industrial side, they serve as the backbone for hydraulic fluids, metalworking coolants, and compressor lubricants.

    Many smaller blenders rely on us because they face shifting specs from automakers or tightening emission regulations. The latest engine platforms—especially those with aftertreatment—cannot tolerate high sulfur or aromatic content, so Group II and Group III base oils now underpin almost all new OEM-approved lubricants. When our customers send test batches to OEMs, even a slight failure in volatility or deposit control means months of backtracking and wasted resources. We work with them to finetune formulations that clear every technical hurdle. Some customers still demand Group I base oils for legacy machines—their years of empirical evidence with older machinery make them risk-averse to changes, especially when issues like seal compatibility or sludge resistance come up.

    Any shift in formulation requirements, especially for food-grade or pharmaceutical lubricants, traces straight back to our process controls. Our USP-grade white oils start as high-purity feedstocks from the same units but require extra purification, fixed-bed hydrotreating, and advanced filtration. In our experience, mistakes in changeover from industrial to white oil production show up fast in the market as costly product withdrawals. So, we isolate lines, maintain separate documentation, and keep grade-specific cleaning and validation protocols—lessons taught by years of close work with regulatory inspectors.

    The Difference We See Between Base Oil Types

    Years in production and technical service give us a no-nonsense view of base oil selection. Group I, Group II, and Group III oils don’t just differ by their chemical numbers—each one brings practical consequences for blending, additive selection, and equipment life.

    Group I oils have a wide molecular spread so they absorb more additives and are easier to blend with detergents and dispersants. Their higher sulfur levels (up to about 0.05%) mean that older formulations tolerate them better, especially those designed in the pre-synthetic era. We see Group I oils going into heavy-duty marine lubricants, specialty process oils, and textile lubricants, where traditional formulation architecture remains. Maintenance shops running vintage turbines, compressors, or engines stick to Group I as their ‘known quantity.’

    Group II base oils, refined through hydrogen, contain less than 0.03% sulfur, making them clear, more resistant to oxidation, and lasting longer between changes. They handle the needs of fleets, construction machinery, and long-haul trucks where manufacturers want lower maintenance costs and better fuel economy. Years of feedback from large-scale fleet customers support Group II’s longer equipment lifespans and less frequent downtime—these users care less about up-front cost and more about side-by-side operational savings.

    Group III base oils are even more highly refined—often classed as “synthetic” under some regulations. Processes including hydroisomerization and severe hydrocracking give them high viscosity index (above 120), ultra-low sulfur, and superior volatility control. In real terms: high-end automotive, high-efficiency transmission fluids, and next-generation industrial lubricants run cooler, cleaner, and cleaner for longer on Group III. Major automakers who face stricter emission and consumption targets increasingly specify Group III even for regular servicing. In our labs, these oils show an unmistakable difference in thermal resistance and deposit control compared to earlier generations.

    Why Base Oil Choice Matters in Today’s Industry

    The choice of base oil is inseparable from product lifecycle management. In countries facing changing environmental legislation or tightening CO2 limits, specifying the wrong base oil can send recyclers or blenders back to the starting line. Our plant once ran parallel batches of Group I and Group II for a multinational client who wanted to phase out older oils. Their engines immediately showed improved drain intervals, cleaner filters, and fewer coking issues on Group II, justifying a permanent switch. Sometimes the shift is less about performance and more about regulatory compliance. Longtime export customers face growing REACH or GHS pressure in Europe and Asia, so we’ve worked for years to reduce aromatic content, lower sulfur, and comply with stricter waste disposal rules.

    Base oil products tailored for low volatility also cut vapor losses across open systems and help blenders meet new VOC caps. By redesigning vacuum unit parameters, we brought down our own vapor losses, which reduced complaints from factory neighbors about odors and smog. For blenders making fire-resistant or biodegradable lubricants, we developed custom Group II and Group III stocks, learning along the way how to maintain oxidation stability without relying on heavy aromatics. Lessons came hard: failed batch blending, customer complaints about filter plugging, and sleepless nights cross-checking process logs until we dialed the process.

    Our team’s regular audits—both internal and by third-party certifiers—help us keep track of process contamination risks and incoming feedstock quality. Running a base oil plant means troubleshooting at every turn: water incursion can spike a deasphalting unit, catalyst fouling can drag hydrogen levels, insects in the cooling towers can blow a batch clean out of specification. With every plant upset, the lesson repeats—every mishap ripples down to the end user.

    Differentiating Ourselves from Other Suppliers

    Some buyers look at price and numbers, but decades in this business have taught that cost savings in production mean nothing if equipment fails or warranty claims undermine trust. Our approach keeps things grounded: test, document, communicate, and support. Field engineers have spent years tracing issues back to manufacturing changes—a certain summer batch with a minor distillation hiccup once led to a wave of foaming complaints from rail fleet operators. The root cause: slightly elevated paraffins from warmer-than-usual tower operation, a fixable problem that showed up quickly and reinforced our need for constant vigilance.

    We stand apart by maintaining decades of field data, linking every batch of base oil to specific application results. By visiting customer sites, collecting samples straight from operating gearboxes and engines, and supporting teardown analyses, we build detailed knowledge unavailable to traders or resellers. This lets us recommend exact viscosity grades and types not only based on paperwork but on years of machine and fleet history. Our plant keeps trained technical support on hand for one reason: so users and blenders troubleshoot with people who actually know the nuts and bolts of production.

    Another difference: our process flexibility. Some manufacturers only ship bulk loads or restrict grades to maximize asset utilization. Having split storage, tailored changeovers, and batch-mode operation costs us more, but gives smaller blenders access to premium lots. A lubricant formulator pushing for OEM approval or a startup seeking boutique cosmetic-grade white oil can get the support and traceability large-scale commodity plants shy away from.

    Problems and Ongoing Solutions in Base Oil Manufacturing

    Some challenges never completely disappear. Feedstock volatility due to geopolitical or supply changes can upend plant economics overnight. We maintain longstanding relationships with a range of crude suppliers to safeguard consistent product quality, and regularly adapt our process parameters to unexpected changes. Even then, shifts in crude composition usually show up in our QA labs quickly enough to catch before final shipment.

    Equipment aging, corrosion, and fatigue play a constant part in plant management. Our maintenance teams work closely with operators to schedule preemptive overhauls on heat exchangers, pumps, and reactors. Modernizing instrumentation goes a long way—digital process automation and real-time analytic feedback have caught several incipient problems before batch failures. Regular investment in plant reliability shows up neatly in lower off-spec volumes and improved customer confidence.

    Environmental oversight is the new normal in base oil. Local authorities now monitor odor, vapor, and wastewater emissions more closely than ever. We address this through sealed vapor recovery, lower VOC cuts, and secondary containment systems. Ongoing R&D efforts seek ways to further reduce the environmental impact of older refining technology by incorporating solvent replacement and hydroprocessing retrofits as part of our capital improvement plan.

    Skilled staff shortages complicate the business for everyone. Hands-on plant experience cannot be replaced overnight by automation or procedural documentation. We partner with technical colleges and vocational schools, offering a steady pipeline for apprentice operators, lab analysts, and process engineers. This attention to human capital keeps our technical expertise sharp, retains plant knowledge, and limits downtime from procedural mistakes.

    Looking Forward: Sustainability Pressures and Market Moves

    Energy efficiency and sustainability make up a growing slice of every base oil discussion. Many end users request lifecycle energy data for every shipment, and major automakers expect low carbon-intensity lubricants within a decade. Our R&D efforts now include feasibility studies on biobased feedstocks and recycled base oil regeneration. Early trials show some promise, but tight product specification and regulatory acceptance remain hurdles. Experience warns that jumping to recycled or biobased oil can complicate additive blending or trigger equipment compatibility concerns. We’re not rushing to label next-generation oils as equivalent until field results and accelerated aging studies say otherwise, and our partners appreciate that honesty.

    We don’t see base oil as a commodity. Each batch reflects hands-on manufacturing and real-world customer applications. Whether for a massive turbine in a power plant, a precision spindle in a textile mill, or the family car’s engine, base oil acts as the unseen foundation of performance and reliability—long before the final lubricant brand appears on a drum or bottle. Our focus remains: deliver what works, document what’s right, and support every shipment with the full weight of our people’s knowledge and care.