National V/Euro V Engine Oil Wholesale National V/Euro V Engine Oil
Home / Products / Automotive Lubricants / Diesel engine oil / National V/Euro V Engine Oil
About Us
Leanon Petroleum Technology Co., Ltd.
Leanon Petroleum Technology Co., Ltd.

As a full-industry-chain service provider in the lubricants sector, Leanon Petroleum Technology Co., Ltd. China National V/Euro V Engine Oil Manufacturer and Wholesale National V/Euro V Engine Oil Company, we have established a comprehensive industrial ecosystem spanning international base oil trade, innovative lubricant formulation R&D, intelligent automated blending production, fully automated filling & packaging, professional packaging container design & manufacturing, to marketing promotion. As a full-industry-chain service provider in the lubricants sector, Leanon Petroleum Technology Co., Ltd. has established a comprehensive industrial ecosystem spanning international base oil trade, innovative lubricant formulation R&D, intelligent automated blending production, fully automated filling & packaging, professional packaging container design & manufacturing, to marketing promotion. 

Certificate Of Honor
  • Quality Management System Certificate
  • Quality Management System Certificate
  • Occupational Health And Safety Management System Certificate
  • Occupational Health And Safety Management System Certificate
  • Environmental Management System Certificate
  • Environmental Management System Certificate
Leanon Petroleum Technology Co., Ltd.
Focus On Dynamics
Follow us to learn about the latest company and industry consulting
  • Feb.23.2026
    How to Optimize Industrial Gearbox Performance?
    In the heavy-duty landscape of modern manufacturing, the reliability of mechanical power transmission systems hinges on a single, critical factor: the quality of lubrication. Industrial gearboxes operate under extreme conditions, including high torque, shock loads, and varying thermal environments, making the choice of industrial gearbox oil a vital decision for plant managers and maintenance engi...
  • Feb.16.2026
    What Is Brake Fluid?
    Understanding Brake Fluid and Its Role in Vehicle Safety Brake Fluid is a critical hydraulic medium that transfers force from the brake pedal to the braking components at each wheel. In modern vehicles, braking systems rely on incompressible fluids to ensure immediate and consistent response under varying driving conditions. When a driver applies pressure to the brake pedal, brake fluid transmits ...
National V/Euro V Engine Oil Industry knowledge

How Euro V Engine Oil Enhances Engine Performance and Longevity

Euro V Engine Oil is specifically formulated to meet the stringent emission and performance requirements of modern diesel engines. By providing excellent lubrication, wear protection, and thermal stability, it helps reduce engine friction, prevent deposit formation, and maintain consistent performance under high temperature and heavy load conditions. This not only prolongs the life of critical engine components but also improves fuel efficiency and reduces harmful emissions, aligning with Euro V environmental standards.

Key Parameters of Euro V Engine Oil

Parameter Typical Value / Description
Viscosity Grade SAE 10W-40, 15W-40 (depending on application)
API Service Classification CI-4, CJ-4
Flash Point ≥ 220°C
Pour Point ≤ -30°C
Total Base Number (TBN) 8-12 mg KOH/g
Density @ 15°C 0.87–0.89 g/cm³
Application Modern diesel engines meeting Euro V emission standards

By combining advanced formulation technology with high-quality production standards, Euro V Engine Oil from LEANON Petroleum Technology Co., Ltd. ensures optimal engine protection, efficient performance, and longer service life for modern diesel engines.

Comparing National V Engine Oil with Previous Generation Lubricants

Introduction

National V Engine Oil represents the latest standard in diesel engine lubrication, designed to meet stringent emission regulations and modern engine performance requirements. Compared to previous generation lubricants, such as National IV or Euro III/IV engine oils, National V offers significant improvements in protection, efficiency, and environmental compliance.

1. Advanced Formulation

  • Additive Technology: National V Engine Oil incorporates advanced anti-wear, anti-oxidation, and detergent additives. These help maintain engine cleanliness, prevent deposit formation, and reduce wear on critical engine components.
  • Viscosity Stability: Enhanced viscosity index improvers ensure stable performance under extreme temperatures, unlike some previous generation oils that may thin excessively at high temperatures.

2. Emission and Environmental Compliance

  • National V lubricants are formulated to support engines equipped with advanced emission control systems, such as Diesel Particulate Filters (DPF) and Selective Catalytic Reduction (SCR).
  • Compared with older oils, National V Engine Oil produces fewer sulfated ash, phosphorus, and sulfur (SAPS), reducing the risk of clogging emission devices and contributing to lower overall exhaust emissions.

3. Engine Longevity and Performance

  • Wear Protection: Advanced friction modifiers provide superior wear protection for critical components such as pistons, cylinder liners, and turbochargers.
  • Fuel Efficiency: Reduced internal friction and optimized formulation can improve fuel economy, a benefit less pronounced in previous generation oils.
  • Deposit Control: Enhanced detergents prevent sludge and varnish formation, keeping engines cleaner for longer service intervals.

4. Compatibility and Service Intervals

  • National V Engine Oil is backward compatible with many engines that previously used National IV lubricants, and its formulation allows longer drain intervals without compromising engine protection.
  • This contrasts with older oils, which may require more frequent changes to maintain engine health and performance.

5. Summary Comparison Table

Feature National V Engine Oil Previous Generation Lubricants
Additive Technology Advanced anti-wear, anti-oxidation, detergents Basic additive packages
Emission Compliance Supports DPF and SCR systems Limited compatibility
Wear Protection High-level protection for pistons, liners, turbo Moderate protection
Fuel Efficiency Improved due to low friction Standard performance
Service Interval Extended intervals Shorter intervals
Engine Cleanliness Superior deposit and sludge control Moderate control

Conclusion

National V Engine Oil offers a clear advancement over previous generation lubricants. Its formulation supports modern diesel engines' performance, extends engine life, improves fuel efficiency, and meets stricter emission standards. For fleet operators and vehicle owners aiming for reliability and compliance with National V regulations, upgrading to National V Engine Oil is a strategic choice.