ATTENTION RED LINE OIL CUSTOMERS: Please be advised that we are not accepting walk-in customers at our Benicia office at this time due to COVID-19. You may place an order at or call us at (707) 745-6100. All orders will be shipped to your requested address at our standard shipping rate. We apologize for the inconvenience and hope to open our doors again to you in the near future. Thank you for supporting Red Line Oil, we appreciate your business.

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Due to the inclement weather, your order may be delayed for several days. We appreciate your patience and understanding.

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15W50 Powersports Oil

15W50 Powersports Oil

Maintain the smooth ride. Your four-stroke dirt bike is asking for it.

15W50 Powersports Oil

  • Less friction modifier for superior wet clutch operation
  • Improved mileage & longer drain intervals
  • Greater film strength for improved durability
  • Viscosity shear protection
  • Withstands extreme temperatures
  • For high & low-mile engines
  • Not for break-in of engines
  • Low temperature flow
  • Compatible with conventional and synthetic oils
  • Blended with specific friction modifiers that are compatible with wet-clutches
  • Suitable for JASO MA/MA2 applications
SKU: 42104
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Full-synthetic with PAO and Ester base stocks and 2200 ppm of ZDDP for antiwear

Typical Properties

API Service Class SL/SJ/SH JASO MA/MA2
SAE Viscosity Grade (Motor Oil) 15W50
Vis @ 100°C, cSt 19.3
Vis @ 40°C, cSt 139
Viscosity Index 159
CCS Viscosity, Poise, @ °C 20
Pour Point, °C -45
Pour Point, °F -49
Zinc, avg PPM 2260
Phosphorus, avg PPM 2030
Molybdenum, avg PPM 130
NOACK Evaporation Loss,1hr @ 482°F (250°C), % 5
% Viscosity Loss, 30 Pass ASTM D6278 3
HTHS Vis, cP @150°C, ASTM D4741  6.1

Available Sizes


Suitable Replacement For: