TM 5-3895-383-24 Transmission/Drive Train Oil SMCS Code:  3080; 4070 Applications Power Shift Transmissions, Direct Drive Transmissions, and Winches Final     Drives     for     Track-Type     Tractors,     Pipelayers, Skidders, Loaders, and Track-Type Excavators Differentials    and    Final    Drives    for    Wheel    Tractors, Loaders,   Skidders,   Compactors,   Motor   Graders,   Off- Highway Tractors, and Trucks Caterpillar Transmission/Drive Train Oil (TDTO) Caterpillar Transmission/Drive Train Oil is balanced in order to give maximum frictional material life in power shift transmissions.    Caterpillar  Transmission/Drive  Train  Oil  also eliminates brake chatter in wet brake applications in Caterpillar machines.  This oil has passed the requirements for the TO-4 oil specification which includes the frictional requirements and gear wear requirements.  This oil is offered in several lubricant viscosity grades.  The SAE 60 viscosity grade is included for maximum component life at high ambient temperatures and for heavy-duty cycles. NOTICE This  oil  is  formulated  for  transmissions  and  drive  trains only,   and   should   not   be   used   in   engines.      Shortened engine life will result. NOTE: Do not use the Caterpillar Gear Oil or commercial gear oil in the machines that are listed above.  The gear  oil  can  cause  seals  to  fail.    The  seals  can also  leak.    The  gear  oil  may  not  be  compatible with  friction  materials.    The  oil  can  reduce  the efficiency   of   the   transmission   and   the   brake performance. NOTE: Multigrade oils must meet the requirements of the Caterpillar   TO-4M   specification   in   order   to   be used in transmissions.  Multigrade oils which use high    molecular    weight    polymers    as    viscosity index improvers may lose the viscosity effectiveness.    This  effectiveness  may  be  lost  by the   temporary   shear   of   the   polymer   viscosity index improver.  Permanent shear of the polymer viscosity  index  improver  may  also  occur.    This type of multigrade oils are not recommended for Caterpillar     drive     train     compartments.          The Caterpillar TO-4M requirement includes a test for the shear stability of multigrade oil. Commercial Transmission/Drive Train Oils If   Caterpillar   Transmission/Drive   Train   Oil   is   not   used,   use commercial oils that comply with the Caterpillar TO-4 or TO-4M specifications. Gear Oil SMCS Code:  7000; 7551 Applications Direct Drive Transmissions for Pavement Profilers Differentials     and     Final     Drives     for     Wheel     Tractor- Scrapers,  Articulated  Trucks,  Wheel  Type  Excavators, certain Backhoe Loaders, and Pavement Profilers Certain Vibratory Compactor Drum Bearings Caterpillar Gear Oil (GO) Caterpillar   Gear   Oil   offers   maximum   protection   against   the following damage:  scoring of the gear teeth, pitting of the gear teeth,  and  pitting  of  the  parts  in  roller  bearings.    Caterpillar Gear  Oil  provides  excellent  stability  under  high  temperature conditions.        Caterpillar    Gear    Oil    also    has    superior    low temperature    performance.        This    oil    also    gives    protection against rust and against corrosion.  Some applications require additives for the extreme pressures that can occur at the edges of the components.  For these applications, Caterpillar Gear Oil provides the extra protection. When the use of gear oil is specified, use Caterpillar Gear Oil in order to maximize the component life. NOTICE Caterpillar  Gear  Oil  (GO)  is  not  the  same  as  Caterpillar Transmission/Drive     Train     Oil,     and     does     not     meet Caterpillar's specifications for TO-4 oil.  Caterpillar GO or commercial gear oils should not be used in compartments which specify TO-4 oil. Commercial Gear Oils If  the  Caterpillar  Gear  Oil  cannot  be  used,  select  an  oil  that meets the API GL-5 specification. Maintenance Section Lubricant Specifications 1-46