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 redlineoil.com 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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V-Twin Primary Case Oil

V-Twin Primary Case Oil

Everyone thinks about the transmission side, but the clutch and primary chain need love, too.

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V-Twin Primary Case Oil

  • For 1984-to-present V-Twin American motorcycle engines, including Milwaukee-Eight, Evolution, Twin Cam and aftermarket engines of similar design
  • Same fluid as our famous MTL gear oil
  • Improves clutch operation while reducing wear and temperature
  • Where most synthetics are too slippery for clutch operation, this friction-balanced product is balanced to provide less slip, smoother operation and helps to apply more power in modified engines
  • This product is for use in the primary chaincase with wet-diaphragm spring clutches
SKU: 42904
$15.95
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Full-synthetic formulations specific to the latest V-Twins, UTVs, ATVs and Sportbikes

Typical Properties

API Service Class GL-4
SAE Viscosity Grade (Gear Oil) 75W80
SAE Viscosity Grade (Motor Oil) 5W30
Vis @ 100°C, cSt 10.4
Vis @ 40°C, cSt 50.8
Viscosity Index 201
Pour Point, °C -50
Pour Point, °F -58
Brookfield Vis @ -40°C, P 120

Available Sizes

Quart 42904

Suitable replacement for:

API GL-4 / GL-3 / GL-1
SAE 75 / 80 / 75W80
SAE 30 / 5W30 / 10W30