Standard Interval For Oil Changes Now 20,125 Kilometers (12,500 Miles) Or 250 Service Hours
Usage:
Direct Injection 3406 Truck Engines
Description of Change: The standard interval for oil changes has been changed for direct injection 3406 Truck Engines. The oil change interval is now 20,125 km (12,500 mi) or 250 Service Hours, the same interval as for 3406 Truck Engines with precombustion chambers. Formerly, the oil change interval was 12,880 km (8000 mi).
Because of this interval change, the "Emission Related Components" chart on page 80 of the "3406 Truck Engine Operation And Maintenance Guide," Form No. SEBU5595-01 must be changed. Remove the reference to note 6 in item 3. Also, remove note 6 from the bottom of the page.
Caterpillar Information System:
1981/09/09 Certification Film Necessary On Engines Adjusted For High Altitude Operation
1981/09/09 O-Ring Seal Materials And Applications: Use Only The Correct Seal For The Specific Installation
1981/09/09 Use Of Different Anti-seize Compound Prevents Problems With S.O.S. Tests
1981/09/09 Troubleshooting The Fuel Ratio Control Group For Low Power Complaints
1981/08/18 New Information System For Engine Gasket Kits
1981/08/18 New Spacers Used With Larger Valve Springs
1981/08/18 Use 6V4805 Valve Seat Extractor Group To Remove Valve Seat Inserts
1981/08/18 Indications Of High Oil Temperatures In Brakesaver Circuit Can Be Caused By Wrong Gauge Connection
1981/08/18 Coolant Conditioner Elements And Their Capacities
1981/08/18 Use 6V4068 Tool Group To Machine Camshaft Thrust Face
1981/08/18 Mailing Of Engine News And Truck Engine News Microfiche Libraries
1981/08/18 Delay Expected In Replacement Of Canceled Service Tools
1981/09/09 Improvements To Optional Modification Of 5P4150 Nozzle Tester
1981/09/09 6V3100 Diesel Timing Indicator Group Available To Check Engine/Fuel System Timing And Mechanical Advance During Operation
1981/09/09 Different O-ring Seals Used In Exhaust Gas Recirculation Actuator Group
1981/09/09 Top Rings For Pistons Have Two Designs
1981/09/09 New Idler Pulley Groups Improve Service Life Of Vee-belt
1981/09/09 List Of Service Publications
1981/09/09 Explanation Of Differences In Timing Advance Information
1981/09/09 Thrust Washer Used In Pump Housing For Sleeve Metering Fuel System
1981/09/23 Use Only EPA-Approved Rack And Idle Setting; Change Seal, Data Plate
1981/09/23 Higher Torque Used With Later Head Bolts
1981/09/23 Comparison And Applications Of Six And Eight Counterweight Crankshafts
1981/09/23 Changes To Brakesaver Groups Give Longer Service Life