Idemitsu Pro Racing 15W-50

Idemitsu Racing 15W-50 is engineered to provide exceptional protection and deliver maximum horsepower and torque for modern racing engines. The advanced base oil formulation and high-performance additive technology help provide superior lubrication performance by ensuring a precise film of protection for professional race cars, especially rally race cars, operating in the most severe driving conditions.

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WARNING: Cancer and Reproductive Harm

  • Superior shear stability allows maximum lubrication film thickness between the metal surfaces in all driving conditions – including severe race conditions
  • Exceptional wear protection and durability to protect main bearing and eccentric shaft
  • Special molybdenum technology reduces friction and increases horsepower and torque – a critical demand of professional race cars
  • Outstanding deposit and sludge control result in a cleaner engine to help extend engine life
  • Excellent overall lubrication and wear protection for severe driving conditions as is typically encountered in professional rally racing

For Purchase

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Description Part Number
1 Quart 30041115-75000C020
5 Quart 30041115-95300C020

Chemical/Physical Properties

Characteristics Units Test Method Typical Value
Density @ 15°C g/cm3 ASTM D4052 0.88
Kinematic Viscosity @ 40°C mm2/s ASTM D445 129
Kinematic Viscosity @ 100°C mm2/s ASTM D445 17.5
Viscosity Index - ASTM D445 149
MRV Viscosity @ -25°C mPa-s ASTM D4684 18,500
HTHS Viscosity @ 150°C mPa-s ASTM D5481 4
CCS Viscosity @ -20°C mPa-s ASTM D5293 4,000

Specifications & Approvals

Idemitsu Racing 15W-50 meets the performance requirements for those vehicles where 15W-50 is recommended, especially for:

  • Japanese Race Cars
  • Rally Race Cars (including STI)

Fill crankcase to manufacturer’s recommended level.

Compatible with turbocharged and supercharged applications.