Product Overview & Specifications
Bizol Allround Plus 10W-40 is a high-performance, semi-synthetic motor oil meticulously engineered for gasoline and diesel engines in passenger cars, light commercial vehicles, and older heavy-duty applications where a 10W-40 viscosity grade is specified. This formulation leverages a sophisticated blend of Group II mineral base stocks and Group III hydrocracked synthetic base components, synergistically combined with an advanced additive package. This hybrid base oil technology provides an optimal balance of cost-effectiveness and enhanced performance over conventional mineral oils.
The core technical claims for Bizol Allround Plus 10W-40 center on its robust wear protection across a broad temperature range, superior engine cleanliness through effective detergency and dispersion, and excellent oxidation stability. It is designed to mitigate sludge and varnish formation, ensure efficient lubrication during cold starts, and maintain a resilient lubricating film under high thermal and mechanical stress typical of varied driving conditions. Its real-world target audience includes owners of vehicles from the late 1990s through the mid-2010s that do not require ultra-low SAPS (Sulfated Ash, Phosphorus, Sulfur) formulations or extreme fuel economy-driven viscosities. It is particularly well-suited for engines with higher mileage or those operating in mixed fleet scenarios where a single, versatile lubricant simplifies inventory management.
Technical Characteristics Table
Here are the key universal technical metrics for this motor oil:
| Parameter | Value / Specification |
|---|---|
| SAE Viscosity Grade | 10W-40 |
| Base Oil Type | Semi-Synthetic (Hydrocracked & Mineral Blend) |
| OEM Approvals & Licenses |
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| ACEA / API Classifications |
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Recommended Applications & Car Compatibility
Bizol Allround Plus 10W-40 is primarily recommended for a wide array of gasoline and diesel engines, particularly those found in older to moderately aged passenger cars and light commercial vehicles. It is ideally suited for naturally aspirated (NA) and turbocharged gasoline engines, including those with multi-valve technology, as well as indirect injection (IDI) and certain direct injection (DI) diesel engines without modern diesel particulate filters (DPFs). Its robust formulation provides excellent lubrication and protection for mechanical components, making it a reliable choice for engines from manufacturers such as Mercedes-Benz (older models requiring 229.1), Volkswagen Group (pre-2007, often requiring 501.01/505.00), Renault, Peugeot, Citroën, Fiat, and various Asian manufacturers where a 10W-40 viscosity and API SN/CF or ACEA A3/B4 performance level is specified.
This oil offers particular benefits in conditions demanding high shear stability and sustained film strength. It performs effectively in engines operating under varied loads, from urban stop-and-go driving to sustained highway speeds. Its detergent and dispersant properties help maintain internal engine cleanliness, which is crucial for preventing deposits in piston rings, valve trains, and oil passages of engines without the tight tolerances or advanced emissions controls of newer designs. While it offers good cold start protection down to typical continental winter temperatures, its primary strength lies in maintaining stable viscosity and protection at the higher operating temperatures characteristic of many older, hard-working engines.
Operating Conditions & Drain Intervals
- Standard Drain Interval: Under normal driving conditions, encompassing a balanced mix of highway and city driving without excessive idling or extreme loads, Bizol Allround Plus 10W-40 typically supports drain intervals of 10,000 to 15,000 kilometers (approx. 6,000 to 9,000 miles) or 1 year, whichever comes first. Always refer to the vehicle manufacturer’s specific recommendations, as these can supersede general oil guidelines based on engine design and operational parameters.
- Severe Service Interval: For vehicles operating under arduous conditions such as prolonged heavy city traffic, frequent short trips, sustained stop-and-go driving, excessive idling, towing heavy loads, or operation in extremely dusty or high-temperature environments, the drain interval should be significantly reduced. In such severe service, it is advisable to change the oil every 5,000 to 7,500 kilometers (approx. 3,000 to 4,500 miles) or 6 months, whichever comes first. This shorter interval helps to mitigate the accelerated degradation of the additive package and increased contaminant load.
- Temperature Performance: The 10W designation indicates a relatively low cold-crank viscosity, enabling efficient lubrication and reduced wear during cold starts down to approximately -25°C (-13°F). This ensures rapid oil circulation to critical engine components upon ignition, minimizing frictional wear. At the operating temperature of 100°C, the kinematic viscosity is characteristic of a ’40’ grade oil, providing a robust lubricating film that effectively protects engine components from wear and maintains oil pressure under high-heat, high-shear conditions. Its semi-synthetic nature contributes to improved thermal stability and resistance to breakdown compared to conventional mineral oils, offering reliable protection during sustained high-load summer operation.
Usage Restrictions & Limitations
Despite its versatile “Allround Plus” designation, Bizol Allround Plus 10W-40 is not universally suitable for all modern automotive engines, and its application requires careful consideration of vehicle manufacturer specifications. Owners of vehicles equipped with modern exhaust aftertreatment systems, specifically Diesel Particulate Filters (DPFs) or Gasoline Particulate Filters (GPFs), should NOT use this oil. As an ACEA A3/B4 rated oil, it is typically a mid-to-high SAPS formulation, meaning it contains higher levels of sulfated ash, phosphorus, and sulfur which can irreversibly contaminate and degrade DPF/GPF catalyst performance, leading to premature system failure and costly repairs. Modern vehicles requiring low-SAPS (ACEA C-series) oils must adhere strictly to those specifications.
Furthermore, this oil is generally not recommended for very modern engines that specifically require lower viscosity grades such as 0W-20, 0W-30, or 5W-30 to meet stringent fuel economy targets or to accommodate extremely tight bearing clearances. Using a higher viscosity 10W-40 oil in such engines can potentially lead to increased hydrodynamic friction, reduced fuel efficiency, and in extreme cases, inadequate oil flow to critical, precisely engineered components. While it is generally compatible with older engine seal materials, owners of classic or extremely high-mileage vehicles with known seal degradation should monitor for potential leaks, although this is more often a function of the engine’s condition rather than the oil itself.
Always consult the vehicle’s owner’s manual or the manufacturer’s lubrication chart to ensure that Bizol Allround Plus 10W-40 meets or exceeds the required specifications for your specific engine application. Deviating from these requirements can compromise engine longevity and performance.
