Sierra SAE 25W-40 Synthetic Blend Oil For Inboard and Sterndrive Engines, 5 qts.
Item No. 318289
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Sierra SAE 25W-40 Synthetic Blend Oil For Inboard and Sterndrive Engines, 5 qts.
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Sierra SAE 25W-40 Synthetic Blend Oil For Inboard and Sterndrive Engines, 5 qts.

Sierra SAE 25W-40 Synthetic Blend Oil For Inboard and Sterndrive Engines, 5 qts. is rated 5.0 out of 5 by 2.
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Item No. 318289
$27.54 $28.99 Compare at $34.99
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Additional Information
Sierra SAE 25W-40 synthetic blend oil for inboard and sterndrive engines. Sierra Part #18-9440-4.

Replaces Mercruiser/OMC
OEM Part Number: 92-883725K01
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  • Sierra Part #18-9440-4
  • Synthetic blend oil
  • Formulated for Inboards and Sterndrives
  • 5 Quarts / 4.73 Liters
  • Sierra SAE 25W-40 Synthetic Blend Oil For Inboard and Sterndrive Engines, 5 qts. is rated 5.0 out of 5 by 2.
    Rated 5 out of 5 by from GREAT PRODUCT The price of this product was the best I have seen anywhere. It is easy to use and it works great in my boat.
    Date published: 2017-05-25
    Rated 5 out of 5 by from oil for service Economical alternative
    Date published: 2014-10-16
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    Can you mix synthetic Quicksilver Marine oil in with quicksilver regular blend? Will it cause any problems?

    Asked by: Fast Freddy
    No, we do not recommend mixing the two.
    Answered by: Product Specialist
    Date published: 2017-05-26

    Is Sierra engine oil, part #18-9440-4 FC-W certified ?

    Asked by: Al
    Hello Al, Yes. The Sierra Synthetic Oil is FC-W Certified. Thank you, Steve
    Answered by: Anonymous
    Date published: 2015-09-23
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