1994/08/08 Caterpillar

SOS Allowable Soot Level Changed{1318}

Usage:

All Caterpillar Machines Powered by 3114 and 3116 Engines

The maximum allowable soot level for engine oil in 3114 and 3116 engines has been changed to 145%, using Caterpillar Scheduled Oil Sampling (S0S) Infrared testing procedures. The recommended oil and filter change interval is 250 hours, maximum. When operating at 1830 m (6000 ft) or higher, the engine oil and filter change interval should be shortened to 200 hours, or less, using SOS results to determine an acceptable interval. This new higher 145% soot limit is based on laboratory and field testing which indicate that engine wear is normal with soot levels up to 145%. In applications where SOS soot levels exceed 145%, engine oil and filter change intervals should be shortened. An SOS analysis can determine if a shorter change interval is needed for a particular application.

NOTE: Do not use the new higher 145% soot limit to extend engine oil and filter change intervals beyond the recommended 250 hour change interval. The percent allowable soot is only one of several SOS values. Be sure to evaluate ALL the SOS values.

3114 And 3116 Engine Oil Specifications

* Caterpillar recommends multigrade Cat Diesel Engine Oil DEO (CF-4). * If Cat Diesel Engine Oil DEO (CF-4) cannot be used, commercially available multigrade API Specification CF-4 oil is recommended. * If multigrade API Specification CF-4 oil is not available, use multigrade API Specification CE, CE/SG, MIL-L-2104E, or CCMC D4 in Europe. * If the above oils are not available, use Cat DEO (CD) which is single grade, or use commercially available multigrade API Specification CD oil. * Other single grade oils are not recommended.

NOTE: Caterpillar recommends multigrade API Specification CF-4 oil for engines in ALL Caterpillar machines.

Caterpillar Information System:

1994/07/11 Different Fuel Filter Available To Prevent Premature Wear On Fuel Injection Pump Plungers And Barrels{1261,1251}

1994/07/04 New Cylinder Head Gasket, Spacer Plate And Head Bolts Used; New Cylinder Liner Projection Measurement Method; New Cylinder Head Torque Sequence; Improved Coolant Flow (Cylinder Heads) {1124,1221,1216,1101}

1994/06/27 New Assembly Procedure For Hydraulic Pump Groups With Double Shaft Seals And A Weep Hole Between The Seals Helps Prevent Contamination Through The Weep Hole{5073}

1994/06/20 Installation Procedure For 1R-0716 Engine Oil Filter{1318}

1994/05/30 Three And Five Piece Wheel Rims Reduce The Possibility Of The Tire Bead Not Seating Correctly{4209,4202}

1994/05/23 Date Code On 7000 Series Fuel Injection Nozzles; New Seals Used In 7000 Series Fuel Injection Nozzles{1254}

1994/05/16 Fuel Dilution In The Engine Oil{1290,1318}

1994/04/25 Service Tools For Electronic Controls {0781,0782}

1994/04/25 Lubricant Will Ease Installation Of Secondary Radial Seal Air Filter Element {1054}

1994/04/11 Speed Sensor Available With Improved Reliability{1907}

1994/04/04 Identification Of Intake And Exhaust Valves That May Be Used In Remanufactured Direct Injected 3400 Cylinder Heads{1105}

1994/03/28 Improved 1R-0712 Fuel Filter Provides Improved Sealing{1261}

1994/08/15 Switches With Screw Terminal And Sure Seal® Connector Replaced By Switches With A DT Connector{1400,7400}

1994/08/22 Lubrication Change On Twin Disc Power Take-Off's (PTO's){3055}

1994/08/22 New Fuel Priming Pump And Improved Gasket Used{1258}

1994/09/05 Fan V-Belt Part Number Has Changed For Certain Models With The 3204 Engine{1357}

1994/09/05 Use Of 4C-4377 Stress Plate Group In 3114 And 3116 Cylinder Block Reconditioning{0672,0673,1201}

1994/09/05 Remanufactured 3400 Cylinder Heads Now Use Intake And Exhaust Valves With Chrome Plated Valve Stems{1105}

1994/09/05 New Water Seals Used In Cylinder Head Assemblies{1124}

1994/09/12 Improved Fuel Pump Bonnet Seal Has Better Heat Resistance {1251}

1994/09/19 Caterpillar Introduces New Long Life Heavy Duty Engine Coolant{1395}

1994/09/26 Caterpillar Legendary Service Literature Catalog SELD0811 Updated{0374}

1994/09/26 Arc Suppressors Improve Life of Air Conditioner Thermostatic Switch{7337}

1994/09/26 Exhaust Dust Ejector Operation{1055,1068}