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XJ550 1981 OIL

Discussion in 'XJ Technical Chat' started by Jenkins, Nov 13, 2017.

  1. Jenkins

    Jenkins New Member

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    hi everyone,

    What oil do I use for my XJ550? It’s 1981 model. I’m thinking 10W40? Also seen it takes about 2.5L? Also what’s wet and dry clutch? TIA
     
    Jenkins, Nov 13, 2017
    #1
  2. Stumplifter

    Stumplifter Well-Known Member

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    Stumplifter, Nov 13, 2017
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  3. Jetfixer

    Jetfixer Well-Known Member

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    A wet Clutch is just that it is submerged in oil ... A dry clutch is just that it is dry not in oil .... The XJ is a wet clutch design I use Valvoline 10w/40 Motorcycle oil . Castrol also makes a motorcycle oil ... many synthetic oils do not work so will on the XJ's the starter clutch seem to slip on a higher mileage engine and the transmission clutch can also slip ...the local dealership even recommends avoiding using this oil in the XJ's I actually trust them as they sold them when they were NEW :)
     
    Jetfixer, Nov 13, 2017
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    cgutz likes this.
  4. a100man

    a100man Well-Known Member

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    a100man, Nov 13, 2017
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