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Lucas Syn Gear Lube

Discussion in 'Chevy Trucks' started by GLS, Nov 11, 2003.

  1. GLS

    GLS Senior Member
    Messages: 248

    Has anyone ever used the synthetic gear lube by Lucas?

    I put it in my differential and transfer case. My diff is limited slip and it used to rattle like heck when it was engaging, but now I can't even tell it is locking in. It seems to work very well. I would recommend it.


  2. GLS

    GLS Senior Member
    Messages: 248

    back side

  3. vector6

    vector6 Senior Member
    Messages: 150

    never used it...

    but i sure enjoy playing with the display thing they have to display the viscosity of lucas oil treatment @ the local auto parts store

    every time im in there i tell them i need that in my office..
  4. ratlover

    ratlover PlowSite.com Addict
    from IL
    Messages: 1,325

    I always thought that the display was pretty trick but it dosnt seem to be very well liked over here http://www.bobistheoilguy.com/ . Its kinda like the plowsite of oil. There is a pretty good forum on there. He might be kinda biased beings he is a schaffers oil dealer but how he explains stuff make sense and he always has seemed objective to me.

    What kinda oil did you have in there before and is it a clutch type limited slip or gov lock?
  5. GLS

    GLS Senior Member
    Messages: 248

    Interesting site ratlover.

    I didn't have time to read many posts, but it seems that "bob" doesn't like the Lucas Oil Additive. I'll have to search for the actually syn gear oil when I have time.

    It is a clutch type LSD which I think requires an additive (which I did not use when I changed it, and I have no rattle). Before it just had standard 80W90 GL5.
  6. ratlover

    ratlover PlowSite.com Addict
    from IL
    Messages: 1,325

    Clutch type limited slips do require an additive. When using the GM additive(the only stuff I would use JMO) You can add part of it and keep adding till it stops chattering and add just a hir more, this way you get max grippyness.

    I would just use regular old dino 80 90 with the GM additive if it were me.