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    smaschino's Avatar
    smaschino Posts: 4, Reputation: 1
    New Member
    		  
    #1

    Aug 9, 2009, 03:21 PM
    Engine oil
    My owners manual says to use sae 30 oil in my craftsman 20.5 hp riding mower. I have some sae 10w 30 oil in my garage. Would it be safe to use the sae 10w 30?
    ac101's Avatar
    ac101 Posts: 463, Reputation: 57
    Full Member
    		  
    #2

    Aug 9, 2009, 03:39 PM

    I don't see any problem with it I have used 10-30 oil in my lawn tractors for years and had no trouble. Maybe someone else will disagree but the oldest one has been running since 1974(its true). The 74 I have is also a craftsman. GOOD LUCK, AC
    crigby's Avatar
    crigby Posts: 4,343, Reputation: 107
    Outdoor Power Equipment Expert
    		  
    #3

    Aug 9, 2009, 06:10 PM

    Hi,
    No problem as long as you do as every manual tells you and some do; "check oil every time before starting." 10W30 actually has a broader operating temperature range, but can be consumed a bit more. 5W30 is a no-no as it can be consumed a four times the rate especailly if loaded when not at full throttle.
    Peace,
    Clarke
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