Foreword 3 Understanding Oil 5 Function 5 Basestocks 5 Re-fined Basestock Oils 5 Mineral Oils 5 Synthetic Oils 5 Additives 6 Aftermarket Oil Additives 7 Total Base Number (TBN) 7 Ash or Sulfated Ash 7 Viscosity 7 SAE Viscosity Grades for Engine Oils -SAE J300 Dec 99 8 API Engine Oil Classifications 9 Diesel Engine Oil Recommendations: Caterpillar Diesel Engine Oil 11 Cat DEO (Diesel Engine Oil) 11 Commercial Oils 12 Severe Applications Require the Use of Higher Performing Diesel Engine Oils 13 Total Base Number (TBN) and Fuel Sulfur Levels for Direct Injection (DI) Diesel Engines 13 Selecting the Viscosity 15 The API Donut 17 Cold Weather Lubricants 17 Cleanliness / Oil Filtering 19 Contamination & Degradation 21 Oil Maintenance 22 S·O·SSM Wear Rate Analysis 22 Understanding Wear Metals 22 Trending Wear Metals in Your Engine 22 S·O·SSM Service Oil Analysis 23 Obtaining S·O·SSM Oil Samples 24 Oil Sampling Interval 24 More Frequent S·O·SSM Sampling Improves Life Cycle Management 24 Determining Optimum Oil Change Intervals 24 Optimizing the Component Life Cycle 24 The Technology Behind Wear Rate Analysis 25 Pinpointing the Causes and Effects of Component Wear 25 Monitoring Your Components 25 Silicon / Aluminum Ratio in Dirt Varies by Location 25 S·O·SSM Oil Condition Analysis 25 Maximize Performance by Knowing Your Oil Condition 25 Understanding Oil Condition Analysis 26 Fourier Transform Infrared Analysis 26 Identifying Oil Condition Before It Causes Problems 26