posi traction oil

Discussion in 'Buick FAQ' started by mathieu24, Sep 19, 2004.

  1. mathieu24

    mathieu24 riviera 72 gs

    Is time to change my axle oil. I have a canadian 12 bolt posi. How much oil
    I have ti put ? and it is better synt oil ? Can I put gm limited slip additive it is the same as the gm posi additive ?

    Thanks
     
  2. doc

    doc Well-Known Member

    posi lube

    drain well. then put in posi lube additive and then fill untill the lube begins to run back out of the filler hole. replace the plug, works every time:laugh:
     
  3. mathieu24

    mathieu24 riviera 72 gs

    ok thanks I bought limited slip additive at NAPA. The guy says its the same as posi additive ?
     
  4. doc

    doc Well-Known Member

    posi lube

    Yes, that should be the same additive. It is a must have otherwise the unit will chatter untill it self destructs.
     
  5. 70 gsconvt

    70 gsconvt Silver Level contributor

    Most manufacturer's recommend to NOT use synthetic with their posi units. Check to make sure.
     
  6. gstewart

    gstewart Well-Known Member

    i would suggest that u buy the posi lubes/additives from a gm dealer . all lubes are not the same . i have a friend (67 el camino) who has tried the non-gm posi lubes & has had nothing but trouble & had to switch back to gm fluids .
     
  7. mathieu24

    mathieu24 riviera 72 gs

    ok thanks I have gm limited slip additive
     

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