GC ULTRA SYNTHETIC 10W-30

GC ULTRA SYNTHETIC SAE 10W-30 API SP is a top-tier fully synthetic engine oil engineered to provide ultimate protection for modern turbocharged direct-injection (TGDI) engines operating under harsh ambient conditions. Formulated to eliminate Low-Speed Pre-Ignition (LSPI) risk while maximizing fuel efficiency and timing chain durability.

Application Category Recommended Service Life / Drain Interval
Modern TGDI Passenger Cars & SUVs 10,000 km – 12,000 km (Optimized for severe KSA operating environments)
Hybrid Vehicles & Downsized Engines 300 – 350 Operating Hours (Sustained thermal resistance under desert heat)

Note: Actual drain intervals may vary depending on vehicle condition, fuel sulfur levels, severe dust exposure, and OEM engine recommendations.

  • LSPI Prevention: Advanced formulation mitigates Low-Speed Pre-Ignition events in turbocharged direct-injection engines.
  • Timing Chain Wear Defense: Enhanced protection against chain stretch and wear across extended oil drain intervals.
  • Enhanced Fuel Economy: Provides optimized fuel economy performance complying with ILSAC GF-6A specifications.
  • High-Temp Oxidation Control: Maintains thermal stability and prevents sludge formation under peak ambient desert heat.

TYPICAL PHYSICAL & CHEMICAL PROPERTIES

Property Parameter Method Unit Typical Value
SAE Viscosity Grade SAE J300 10W-30
Kinematic Viscosity @ 100°C ASTM D445 cSt 10.95
Kinematic Viscosity @ 40°C ASTM D445 cSt 66.20
Viscosity Index (VI) ASTM D2270 157
Density @ 15°C ASTM D4052 g/cm³ 0.858
Flash Point (COC) ASTM D92 °C 228
Pour Point ASTM D97 °C -38
Total Base Number (TBN) ASTM D2896 mg KOH/g 8.2
Apparent Viscosity (CCS) @ -30°C ASTM D5293 mPa.s (cP) 5,300
Sulfated Ash Content ASTM D874 % wt 0.77
Evaporation Loss (NOACK) ASTM D5800 % wt 9.5


PERFORMANCE SPECIFICATIONS & STANDARDS

  • API Service Category: SP / ILSAC GF-6A
  • SASO / GSO Standards Compliant (Saudi Standards, Metrology and Quality Organization)
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