8712A43 Mercury CYLINDER BLOCK

Commercial Oils
The performance of commercial diesel engine oils is based on American Petroleum Institute (API) classifications. These API classifications are developed in order to provide commercial lubricants for a broad range of diesel engines that operate at various conditions.If Caterpillar multigrade Diesel Engine Oil is not used, only use commercial oils that meet the following classifications:
EMA LRG-1 multigrade oil (preferred oil)
API CH-4 multigrade oil (preferred oil)
API CG-4 multigrade oil (preferred oil)In order to make the proper choice of a commercial oil, refer to the following explanations:EMA LRG-1 - The Engine Manufacturers Association (EMA) has developed lubricant recommendations as an alternative to the API oil classification system. LRG-1 is a Recommended Guideline that defines a level of oil performance for these types of diesel engines: high speed, four stroke cycle, heavy-duty and light duty. LRG-1 oils may be used in Caterpillar engines when the following oils are recommended: API CH-4 and API CG-4. LRG-1 oils are intended to provide superior performance in comparison to API CG-4.LRG-1 oils will meet the needs of high performance Caterpillar diesel engines that are operating in many applications. The tests and the test limits that are used to define LRG-1 are similar to the new API CH-4 classification. Therefore, these oils will also meet the requirements of the low emissions diesel engines. LRG-1 oils are designed to control the harmful effects of soot with improved wear resistance and improved resistance to plugging