Sierra 10W-30 4 Stroke Conventional Marine Engine Oil, 1 Quart

Model # 10476679 Mfg # 18-9420-2
4.5 out of 5 Customer Rating
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Sierra 10W-30 4 Stroke Conventional Marine Engine Oil, 1 Quart
Model # 10476679 Mfg # 18-9420-2
4.5 out of 5 Customer Rating
Advice & How-To
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.


Get 5X West Advantage Points on all purchases for a limited time! Not a rewards member? JOIN NOW

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This premium motor oil is specifically formulated to meet or exceed the tough requirements of marine four-stroke engines.

Formulated with premium base stock and highly refined additives, this 10W-30 oil meets or exceeds the requirments of engine manufacturers, including Mercury, Yamaha, Johnson-Evinrude, Suzuki and Honda. 

Key Features

  • Excellent anti-wear characteristics
  • Reduces friction
  • Offers maximum corrosion protection
  • Reduces sludge to keep engine cleaner
  • Low temperature viscosity for easier cold starting
  • Meets and exceeds quality performance API SJ, CF-2, CH-4
  • NMMA FC-W Certified

Sierra Limited Lifetime Warranty

Capacity 1 Quart
Compatibility Outboards
Service Category FC-W
Type Conventional
Viscosity 10W30

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