Product Overview & Specifications
Bizol Allround 5W-40 is a meticulously engineered, fully synthetic, high-performance motor oil designed to deliver robust protection and optimal engine function across a wide spectrum of operational conditions. Formulated predominantly with advanced Group III hydrocracked (HC) synthetic base stocks, augmented by a sophisticated additive package, this lubricant achieves a superior balance of thermal stability, oxidation resistance, and shear stability not typically found in conventional mineral or semi-synthetic formulations. Its core marketing claims emphasize its “all-round” capability, providing reliable lubrication for both gasoline and diesel engines, particularly those operating under demanding scenarios such as high RPMs, heavy loads, and fluctuating ambient temperatures. The primary real-world target audience for Bizol Allround 5W-40 encompasses modern and slightly older European and Asian vehicles that specifically call for an ACEA A3/B4 or API SN/CF 5W-40 lubricant, often found in high-performance sedans, SUVs, and light-duty trucks where extended drain intervals and robust wear protection are paramount.
Technical Characteristics Table
Here are the key universal technical metrics for this motor oil:
| Parameter | Value / Specification |
|---|---|
| SAE Viscosity Grade | 5W-40 |
| Base Oil Type | Advanced Hydrocracked (HC) Synthetic |
| OEM Approvals & Licenses | MB-Approval 229.3, VW 502 00 / 505 00, BMW Longlife-01, Porsche A40, Opel GM LL-B-025, Renault RN 0700 / RN 0710 |
| ACEA / API Classifications | ACEA A3/B4, API SN/CF |
Recommended Applications & Car Compatibility
Bizol Allround 5W-40 is expertly formulated for a broad range of gasoline and diesel engines that do not require a low-SAPS (Sulphated Ash, Phosphorus, Sulphur) formulation. Its robust ACEA A3/B4 and API SN/CF classifications, coupled with stringent OEM approvals, make it an excellent choice for:
- High-Performance European Engines: Particularly suitable for BMW engines requiring Longlife-01 (pre-2004 for some models, consult vehicle manual), Mercedes-Benz engines requiring MB 229.3, Volkswagen Group vehicles (Audi, VW, Skoda, Seat) requiring VW 502 00 / 505 00 specifications, and Porsche engines requiring A40. These specifications typically denote a requirement for high shear stability and robust engine protection under severe operating conditions.
- Turbocharged and Gasoline Direct Injection (GDI) Engines: The advanced additive package and synthetic base oils provide superior protection against wear, sludge formation, and thermal breakdown, which are critical for the demanding environment of forced-induction and GDI systems. It helps mitigate low-speed pre-ignition (LSPI) risks due to its robust formulation, though it doesn’t carry a specific API SN Plus certification designed explicitly for LSPI prevention, its overall quality is beneficial.
- Older Diesel Engines (Non-DPF): For diesel engines without Diesel Particulate Filters (DPF), where an ACEA A3/B4 specification is required, this oil offers excellent soot handling, deposit control, and protection against bore polishing. Its high Total Base Number (TBN) of approximately 10.4 mg KOH/g provides significant acid neutralization capability, crucial for combating the acidic byproducts of diesel combustion.
- Asian Vehicles: Compatible with many Japanese and Korean vehicles that specify an API SN or earlier grade 5W-40, offering an upgrade in performance and protection compared to conventional oils.
This oil performs exceptionally well in conditions where engine stress is elevated, such as sustained high-speed driving, frequent heavy acceleration, and consistent towing, maintaining its film strength and viscosity stability.
Operating Conditions & Drain Intervals
- Standard Drain Interval: Under typical driving conditions, which include a balanced mix of highway and city driving without extreme loads or temperatures, Bizol Allround 5W-40 can typically support drain intervals between 10,000 km (6,000 miles) and 15,000 km (9,000 miles) or up to 12 months, whichever comes first. Always consult the specific vehicle manufacturer’s recommendations for the precise interval, as some OEMs may specify longer intervals based on their particular engine designs and monitoring systems.
- Severe Service Interval: For vehicles subjected to severe service, such as constant stop-and-go city traffic, short trips where the engine rarely reaches operating temperature, frequent towing, prolonged idling, or operation in extremely dusty or high-temperature environments, the drain interval should be reduced. A prudent severe service interval for this oil would typically range from 5,000 km (3,000 miles) to 8,000 km (5,000 miles) or every 6 months, whichever occurs first, to ensure optimal protection and prevent excessive oil degradation.
- Temperature Performance: The 5W designation ensures excellent cold-start performance, allowing the oil to flow rapidly to critical engine components even at sub-zero temperatures (down to approximately -35°C to -40°C pour point), significantly reducing wear during start-up. The -40 viscosity grade provides robust film strength and oxidation resistance at high operating temperatures, making it suitable for hot climates and high-load conditions where engine temperatures are elevated. Its high viscosity index contributes to stable viscosity across a wide temperature range, ensuring consistent lubrication.
Usage Restrictions & Limitations
While Bizol Allround 5W-40 is a highly versatile and robust lubricant, it is critical to understand its specific limitations to ensure proper engine compatibility and prevent potential damage:
- Diesel Particulate Filter (DPF) Equipped Vehicles: This oil is NOT suitable for modern diesel vehicles equipped with Diesel Particulate Filters (DPF) that require a low-SAPS (Sulphated Ash, Phosphorus, Sulphur) lubricant. Its ACEA A3/B4 classification indicates a high-SAPS formulation (ash content typically > 1.0%), which can lead to rapid clogging and irreparable damage to DPF systems. For DPF-equipped vehicles, a specific ACEA C1, C2, C3, C4, or C5 oil must be used.
- Certain OEM Specifications: Despite its broad range of approvals, this oil will not meet the requirements for all modern engines. For example, it does not carry approvals like VW 504.00/507.00 (which are low-SAPS), BMW Longlife-04 (low-SAPS), or Mercedes-Benz 229.51/229.52 (low-SAPS). Always cross-reference the exact OEM specification listed in your vehicle’s owner’s manual.
- Older Engine Seal Compatibility: While generally compatible with most seals in modern engines, very old engines (pre-1990s) originally designed for conventional mineral oils might sometimes exhibit seal weeping or leaks when switching to a full synthetic oil. This is due to the different chemical composition and solvency of synthetic oils, which can sometimes interact differently with aged or degraded seal materials. A careful monitoring period is advisable for such vintage applications.
- Mismatched Viscosity Risks: Using a 5W-40 oil in an engine specifically designed for a different viscosity grade (e.g., 0W-20, 5W-30 low-HTHS) can lead to suboptimal performance. A thicker oil than specified can increase pumping losses, reduce fuel economy, and potentially affect variable valve timing (VVT) systems that rely on precise oil pressure and flow. Conversely, using it in an engine that requires an even higher viscosity (e.g., 10W-60) would result in insufficient film strength under severe conditions. Always adhere to the viscosity grade recommended by the vehicle manufacturer.
