Overview

The SI 5W-40 Gasoline Engine Oil is a full-synthetic, high-performance lubricant engineered for modern, high-output passenger car engines, including turbocharged direct-injection (TGDI) systems and hybrid powertrains.

Technical Specifications

Property	Typical Value
SAE Grade	5W-40
Kinematic Viscosity @100°C	14.2 cSt (ASTM D445)
HTHS Viscosity @150°C	3.7 mPa·s (ASTM D4683)
Total Base Number (TBN)	10.2 mg KOH/g (ASTM D2896)
CCS Viscosity @-30°C	5,800 cP (ASTM D5293)
Sulfated Ash	≤1.1 wt% (ASTM D874)
Zinc-Phosphorus Content	≤800 ppm

Product Parameters

Performance Indicator	Typical Result
Valvetrain Wear Reduction	Up to 65% vs. industry test limits
LSPI Protection	0 events / 100-hour Sequence IX test
Timing Chain Elongation	<0.045% (Sequence X)
Piston Deposit Control	<3.2 mg deposit weight
Permanent Shear Loss	<5% (Bosch Injector Test)
Turbo Bearing Protection	Up to 40,000 operating hours

Manufacturing Capabilities

Quality Management: Blending plants operate under IATF 16949, ISO 9001:2015, and ISO 14001:2015 management systems.

Traceable Formulation: Utilizes Tier-1 Group III base stocks and additive packages from Infineum, Lubrizol, or Afton to ensure shear stability across varying seasonal temperatures.

Filling Precision: Automated filling lines maintain a volumetric accuracy within ±0.2%, matching international net-quantity standards for imported cargo inspections.

Retention Sampling: Production runs require laboratory sign-offs on Kinematic Viscosity, CCS, and TBN. Retained samples are archived in climate-controlled storage for 2 years to maintain clear audit trails.

Volume Capacity: A 120,000 metric ton annual capacity provides reliable inventory buffers for high-volume distributors during peak seasonal demands.

Supply Chain Support

Container Loading: Standard orders start from 2 metric tons, supporting mixed loading of 1L bottles, 4L canisters, 208L drums, and 1000L IBCs within a single container.

FOB Dispatch Timeline: Cargo dispatch and port delivery within 14 business days following L/C or advance payment confirmation.

Export Documentation: A dedicated logistics team manages HS Code 3403.19, itemized packing lists, and Certificates of Origin to facilitate efficient customs clearance.

Rolling Inventory Support: Dedicated account managers provide rolling production schedules, shipment tracking, and reorder planning to help distributors maintain stable inventory levels across multiple purchasing cycles.

Compliance

EU REACH Registration: Fully registered for unrestricted import and distribution across the European Economic Area, backed by GHS Safety Data Sheets (SDS) available in 24 languages.

IATF 16949 & ISO 9001: 2015 Process Control: Formulation and blending operate under audited automotive-grade quality systems, restricting batch-to-batch kinematic viscosity variance to within ±2%.

Full Batch Traceability: Every production run of SI 5W-40 is assigned a unique tracking code linked to raw base oil certificates, with retention samples archived for 24 months for verifiable quality audits.

Sustainable Packaging: Industrial HDPE containers incorporate 25% Post-Consumer Recycled (PCR) plastic, helping overseas buyers minimize localized environmental levies and European plastic taxes.

FAQ

Q: Which gasoline engines are SI 5W-40 recommended for?

A: SI 5W-40 is suitable for naturally aspirated, turbocharged, gasoline direct-injection (GDI), and hybrid gasoline engines requiring an SAE 5W-40 lubricant.

Q: What is the recommended oil change interval?

A: Under normal driving conditions, SI 5W-40 supports oil change intervals of 10,000–12,000 km or 12 months.

Q: Is SI 5W-40 suitable for private label and OEM supply?

A: Yes. The product is available in 1L, 4L, 20L, 208L, and 1000L IBC packaging, with private labeling, customized packaging designs, and multilingual labeling available for export markets.

Q: What is the shelf life of unopened SI 5W-40?

A: When stored in its original sealed container at 5–40°C, SI 5W-40 has a shelf life of 5 years. Containers should be kept away from direct sunlight, moisture, and prolonged freezing temperatures.

Q: Which climate conditions is this oil designed for?

A: The SAE 5W-40 formulation provides dependable cold-start performance at temperatures as low as -30°C while maintaining stable lubrication in ambient temperatures exceeding 40°C.

Q: Is this oil suitable for high-mileage engines?

A: Yes. Its high-temperature viscosity and detergent package help maintain oil film strength while reducing sludge formation in gasoline engines with over 100,000 km of accumulated mileage.

Q: How should opened containers be stored after use?

A: After opening, containers should be tightly resealed and stored in a clean, dry environment between 5°C and 40°C. For optimal product quality, the remaining oil should be used within 12 months.

Q: Can SI 5W-40 be mixed with other engine oils?

A: It can be mixed with most API-compliant synthetic gasoline engine oils in emergencies without causing immediate damage. For the best wear protection and additive performance, a complete oil replacement is recommended at the next scheduled service.

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SI 5w40 Gasoline Engine Oil