Used Engine Oil From 1995 3406C (8PN) Truck Engines Is Darker In Color{1318}
Usage:
Owners of these truck engines may notice that the used engine oil is darker in color than other 3406C engines. The darker color is caused by additional soot in the oil. The additional soot is a result of the 1995 combustion system. Testing has show that the additional soot is not detrimental to the operation or life of the engine.
Caterpillar recommends following the published oil change guidelines in Operation And Maintenance Manual, SEBU6746-02, 3306C/3406C ATAAC Diesel Truck Engines, 9TL1-Up, 8PN1-Up, 5KJ7800-Up, 3ZJ16182-Up.
If the color of the used oil continues to be a cause for concern, Caterpillar suggests enrolling in Scheduled Oil Sampling (SOS) at your local Caterpillar Dealer to monitor engine and engine oil condition.
Caterpillar Information System:
1995/03/01 Improved Air Fuel Ratio Control (AFRC){1278}
1995/03/01 Governors Now Use New Low Mass Weight Carrier{1272}
1995/03/01 New Fuel Injection Pump Group{1251}
1995/02/01 Returning Core Engines For Full Refund {0374}
1995/02/01 New Inlet And Exhaust Valves Have Thinner Heads{1105}
1995/02/01 Fabricated Tool For Holding Air Compressor Drive Gear While Tightening Nut On Compressor Crankshaft{0600,1803}
1995/02/01 Special Electronic Control Module (ECM) Used With J1939 Data Link And Eaton Autoshift Transmission{1901}
1995/01/01 Electronic Timing Advance Improvements{1272,1253,1264}
1995/01/01 Description Of January 1995 (JAN95) Personality Module Changes {1902}
1995/01/01 Electronic Unit Injector (EUI) Replacement{1290}
1995/01/01 New Oil for All Engines Burning Low-Sulfur Fuel (0.05% or less) Except The 3600 Family Of Engines{1318}
1994/12/01 Black Painted Valve Covers Available{1107}
1995/03/01 Jacket Water Pumps Now Include New Tapered Roller Bearings{1361}
1995/03/01 Do Not Install A Water Pump Designed For The 3406E Truck Engine On 3406, 3406B Or 3406C Engines{1361}
1995/03/01 Cracks In Phenolic Water Pump Impellers In Remanufactured Water Pumps{1364}
1995/04/01 Tampering With Turbocharger Wastegate{1057,1052}
1995/04/01 Identifying Fuel Injection Pump Check Valves For Compliance With Current Emissions Requirements {1251}
1995/04/01 New Needle Valve Body Corrects Low Idle Surge{1264}
1995/04/01 Handling Electronic Unit Injectors (EUI){1290}
1995/04/01 124-5572 Air Pressure Relief Valve Available{1803}
1995/04/01 Air Compressor Installation Procedure{1803}
1995/05/01 Requirement For FLASH Programming Capability{1900,1901}
1995/05/01 New Rear Power Take-Off (RPTO) Has 1.3:1 Ratio{1165}
1995/05/01 Special Instruction Available For New Dedicated Power Take-Off (PTO){1900,1165}