WHEEL & TIRE AR 2389913 - Caterpillar

Optimizing Oil Change Intervals
The process of determining new oil change intervals is not simple, and requires close work with your dealer over a period of several months. Once new intervals are established, carefully monitoring oil performance and engine wear will be more important than ever. Use S O S Services for both oil and coolant analysis, to make sure that there are not any problems.Proceed beyond the recommended oil change period cautiously. First, determine that the wear rate and oil condition are satisfactory at the recommended interval. Then, extend to the recommended interval plus 50 hours. Stay with the new interval for several changes, and closely monitor the S O S results. If wear results remain acceptable, proceed again to a plus 100-hour interval.Four Types of Oil Samples
There are four categories of oil samples involved in evaluating an oil change interval:
Samples of new oil
Baseline samples
Samples at shortened intervals
Samples at oil changeEverything that could have an impact on oil condition must be held constant during the evaluation period.For more detailed information about optimizing oil change intervals, contact your Cat dealer.Drain the Engine Oil
Note: Ensure that the vessel that will be used is large enough to collect the waste oil.After the engine has been run at the normal operating temperature, stop the engine. Use one of the following methods to drain the engine crankcase oil:
Illustration 1 g06090350
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Deep sump and duplex filter configuration (if equipped)
Turn the drain valve knob counterclockwise to dra