Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

Switching from synthetic to Dino in rear diff?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Rowdy Finn, Feb 14, 2014.

  1. Feb 14, 2014 #1
    Rowdy Finn

    Rowdy Finn Bobtail Member

    44
    4
    Oct 7, 2010
    Eastern NC
    0
    Getting a new rear end put in my 2005 Freightliner Columbia single-axle. When I asked shop guy what he planned to fill it with he said just good old fashioned 80-90 wt gear oil. It had synthetic in it before? Should I insist on the synthetic? When I said something about possible problems with mixing the two types he said not to worry he cleans it real good? What do you think? What is correct wt?
     
    Rowdy Finn, Feb 14, 2014
    Rowdy Finn, Feb 14, 2014
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Feb 14, 2014 #2
    Cat sdp

    Cat sdp . .

    21,201
    75,274
    Apr 8, 2012
    Orion's Belt
    0
    Ask him what the manufacturer of the rear end gear requires for oil . That should be synthetic....
     
    Cat sdp, Feb 14, 2014
    Cat sdp, Feb 14, 2014
    #2
  4. Feb 14, 2014 #3
    SHO-TYME

    SHO-TYME Road Train Member

    3,425
    3,179
    Apr 20, 2011
    Dahlonega, GA
    0
    Your shop guy is an idiot.
     
    SHO-TYME, Feb 14, 2014
    SHO-TYME, Feb 14, 2014
    #3
    Cetane+ Thanks this.
  5. Feb 14, 2014 #4
    Rock hauler

    Rock hauler Light Load Member

    264
    54
    Nov 26, 2008
    Deridder La.
    0
    pay the extra
     
    Rock hauler, Feb 14, 2014
    Rock hauler, Feb 14, 2014
    #4
  7. Feb 14, 2014 #5
    freightlinerman

    freightlinerman Road Train Member

    1,287
    536
    Mar 4, 2011
    Florida
    0
    I'd insist on putting it in yourself. I don't know if I would trust the shop guy.
     
    freightlinerman, Feb 14, 2014
    freightlinerman, Feb 14, 2014
    #5
  8. Feb 14, 2014 #6
    Largecar359

    Largecar359 Road Train Member

    1,075
    1,324
    Aug 13, 2011
    New Jersey
    0
    No way, don't buy what he's selling on he will clean it real good. It is impossible to get all the old synthetic out, if the rears and axle is still attached to the truck. It's not worth the risk at all with something as small as putting the right oil in. Its not the end of the world if your not running synthetic but just the fact that the tech said not to worry he will clean it real good, puts up a red flag. Spend a few extra bucks for peace of mind.
     
    Largecar359, Feb 14, 2014
    Largecar359, Feb 14, 2014
    #6
  9. Feb 15, 2014 #7
    fthegov

    fthegov Bobtail Member

    3
    1
    Feb 9, 2014
    0
    SYN is best,,, I second the the guy is an idiot,,, if you use straight gear lube you will see fuel milage drop esp in the winter or cold days even summer days below 100 degrees. ive been told and don't know if its true that chevron synthetic is a blend of the two, a pure syn gear lube such as mobile makes or amsoil would be best and cross contamination between the 2 lube being a problem isn't real
     
    fthegov, Feb 15, 2014
    fthegov, Feb 15, 2014
    #7
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.