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5w30 in volvo (5.7 chevy) ok?-gctid812148

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    5w30 in volvo (5.7 chevy) ok?-gctid812148

    Wondering if it is ok to run 5 w 30 engine oil in my 1986 AQ225E (5.7 chevy)? Yes it originally was a 5.0 (305) but now has the 5.7.

    Thanks

    #2
    I would say no that oil grade is too light for marine use. Not one engine marinizer I am aware of has ever recommended the use of such a low Vis oil. Use:

    Merc 25/40

    Syn 10/40 as Volvo recommended after they discontinued the Syn straight 30

    Chevron Delo or Shell Rotella in 15/40 grade.

    All of these have been used successfully; I would not use a conventional lower Vis oil of any kind in marine engines.....
    88 Four Winns 200 Horizon 4.3 OMC
    98 Jeep Grand Cherokee 4.0/Selectrac
    07 Jeep Grand Cherokee 5.7 Hemi/Quadradrive II

    Long Island Sound Region

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      #3
      I figured that since the engine runs so cool that the 5w30 would be fine..that and that its still a 30 weight oil when warm..?

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        #4
        "88fourwinns" post=812158 wrote:
        I would say no that oil grade is too light for marine use. Not one engine marinizer I am aware of has ever recommended the use of such a low Vis oil. Use:

        Merc 25/40

        Syn 10/40 as Volvo recommended after they discontinued the Syn straight 30

        Chevron Delo or Shell Rotella in 15/40 grade.

        All of these have been used successfully; I would not use a conventional lower Vis oil of any kind in marine engines.....
        +1
        Dave
        Edmonds, WA
        "THE FIX"
        '93 2556 5.7 Bravo II 2.0:1 18 1/4x19 P
        (.030 over-Vortec top end-part closed cooled)
        The rebuild of my 2556 https://www.baylinerownersclub.org/f...76?view=thread
        Misc. projects thread
        https://www.baylinerownersclub.org/f...56-gctid789773

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          #5
          What does it say on the engine ? Straight 30 weight ?

          My 86' I used straight 30 weight.

          The 94' 10w-30.

          Rotella / Delo what they had a wal-mart.


          Be good, be happy, for tomorrow is promised to no man !

          1994 2452, 5.0l, Alpha gen. 2 drive. Sold ! Sold ! Sold !

          '86 / 19' Citation cuddy, Merc. 3.0L / 140 hp 86' , stringer drive. Sold ! Sold ! Sold !

          Manalapan N.J

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