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Thread: Synthetic Oil?

  1. #11

    Join Date
    Sep 2012
    Posts
    12
    Location
    Mississippi
    Mower
    Craftsman Zero Turn

    Re: Synthetic Oil?

    Another synthetic question.
    Briggs recommends 10w30.
    Will 5w30 work as well? (I have several quarts).

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  3. #12

    Join Date
    May 2010
    Posts
    5,464
    Location
    Illinois
    Mower
    kioti/rhino finish mower

    Re: Synthetic Oil?

    Quote Originally Posted by NickSteel View Post
    Another synthetic question.
    Briggs recommends 10w30.
    Will 5w30 work as well? (I have several quarts).
    I always find this ironic because I keep seeing that briggs recommends 10w30, but briggs doesn't have a 10w30 oil under their name They have a 5w30 synthetic, a 15w50 synthetic, and a 30w oil but not 10w30 oil, and they always claimed that the use of milti-grade oils such as 10w30 or 5w30 non synthetic may cause increased oil consumption.
    ILLINOIS ENGINE, BEECHER CITY, IL
    BRIGGS AND STRATTON MST (MASTER SERVICE TECHNICIAN)
    Sales and Service for Dolmar/Makita, Poulan, Briggs and Stratton, Kohler, Lauson(Tecumseh, LCT), Brute, Honda, Subaru
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  4. #13

    Join Date
    Nov 2014
    Posts
    9,954
    Location
    Australia
    Mower
    Victa slashers & Push , Rover Rancher II's, Cox ( several ) & White LT120 + GT 200

    Re: Synthetic Oil?

    Quote Originally Posted by ILENGINE View Post
    I always find this ironic because I keep seeing that briggs recommends 10w30, but briggs doesn't have a 10w30 oil under their name They have a 5w30 synthetic, a 15w50 synthetic, and a 30w oil but not 10w30 oil, and they always claimed that the use of milti-grade oils such as 10w30 or 5w30 non synthetic may cause increased oil consumption.
    Yes, thinner oil in a horizontal cylinder engine will increase the oil consumption more that it will do in the same engine with a vertical cylinder.
    Mainly will happen during start up and when standing.
    It is a lot harder to keep 5W oil on the right side of an oil seal that 10W or strait 30.

    The auto industry went to very low weight oils to meet the EPA requirements of instant starts
    The same regulations will eventually apply to mowers.

  5. #14

    Join Date
    Nov 2016
    Posts
    15
    Location
    Alabama
    Mower
    Troy-Bilt

    Re: Synthetic Oil?

    Quote Originally Posted by NickSteel View Post
    Another synthetic question.
    Briggs recommends 10w30.
    Will 5w30 work as well? (I have several quarts).
    On the link I posted previously, Briggs states that synthetic 5w30 is good for up to 100 degrees F. I would use it if I already had it.

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