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The purpose of this SAE Recommended Practice is to establish a testing procedure to determine the performance capability of heavy-duty vehicle cooling systems to meet Original Equipment Manufacturer or end user thermal specifications to ensure long term reliable vehicle operations. The recommendations from the present document are intended for heavy-duty vehicles including, but not limited to, on- and off-highway trucks, buses, cranes, drill rigs, construction, forestry, and agricultural machines.

This SAE Recommended Practice is applicable to oil-to-air and oil-to-coolant oil coolers installed on mobile or stationary equipment and provides a glossary of oil cooler nomenclature. Such oil coolers may be used for the purpose of cooling automatic transmission fluid, hydraulic system oil, retarder system fluid, engine oil, etc. This document outlines the methods of procuring the test data to determine the operating characteristics of the oil cooling system and the interpretation of the results.

This SAE Recommended Practice is applicable to all liquid-to-air, liquid-to-liquid, air-to-liquid, and air-to-air heat exchangers used in vehicle and industrial cooling systems.

This SAE Recommended Practice is intended for use in testing and evaluating the approximate performance of engine-driven cooling fans. This performance would include flow, pressure, and power. This flow and pressure information is used to estimate the engine cooling performance. This power consumption is used to estimate net engine power per SAE J1349. The procedure also provides a general description of equipment necessary to measure the approximate fan performance. The test conditions in the procedure generally will not match those of the installation for which cooling and fuel consumption information is desired. The performance of a given fan depends on the geometric details of the installation, including the shroud and its clearance. These details should be duplicated in the test setup if accurate performance measurement is expected.

This SAE Recommended Practice is intended for use in testing and evaluating the approximate performance of engine-driven cooling fans. This performance would include flow, pressure, and power. This flow and pressure information is used to estimate the engine cooling performance. This power consumption is used to estimate net engine power per SAE J1349. The procedure also provides a general description of equipment necessary to measure the approximate fan performance. The test conditions in the procedure generally will not match those of the installation for which cooling and fuel consumption information is desired. The performance of a given fan depends on the geometric details of the installation, including the shroud and its clearance. These details should be duplicated in the test setup if accurate performance measurement is expected.

This document supersedes SAE J819 - Engine Cooling System Field Test. The purpose of this SAE Recommended Practice is to establish a testing procedure to determine the performance capability of engine cooling systems, including charge air coolers, on heavy-duty vehicles with liquid-cooled internal combustion engines. The definition of heavy vehicles for this document includes, but is not limited to, on- and off-highway trucks, cranes, drill rigs, construction, forestry and agricultural machines. Vehicles equipped with side or rear-mounted radiators may require an alternate procedure of a towing dynamometer because of peculiar aerodynamics. Testing is generally conducted to determine compliance with cooling criteria established by the engine manufacturer or the end product user to meet a desired engine reliability goal.

The following topics are included in this report: Section 2 - References Section 3-Definitions Section 4 - Material Selection Section 5 - Production Considerations Section 6 - Initial Structural Integrity Section 7 - In-Vehicle Testing Section 8 - Laboratory Testing The Material Selection section lists environmental factors and material properties which should be considered when determining appropriate fan material(s) for a given application. The Production Considerations section covers various aspects of machine selection, mold design, and process control. The Initial Structural Integrity section lists factors which should be considered in addition to those covered by Section 3 of SAE J1390. The In-Vehicle Testing section lists factors which should be considered in addition to those covered by Section 4 of SAE J1390.

This SAE Recommended Practice is applicable to oil-to-water oil coolers installed on mobile or stationary equipment. Such oil coolers may be used for the purpose of cooling automatic transmission fluid, hydraulic system oil, retarder system fluids, etc. This document outlines the methods of procuring the test data to determine the operating characteristics of the oil cooling system and the interpretation of the results. For information regarding application testing of oil-to-air oil coolers for heat transfer performance, see SAE J1468. The purpose of this document is to provide a procedure for determining the heat transfer performance characteristics of an oil- to-water oil cooler under specified application operation conditions.

This SAE Recommended Practice is applicable to all liquid-to-air, liquid-to-liquid, air-to-liquid, and air-to-air heat exchangers used in vehicle and industrial cooling systems. This document outlines the tests to determine durability characteristics of the heat exchanger under thermal cycling.

This SAE Recommended Practice applies to engine coolant concentrate, ethylene glycol base, for use in automotive and light truck engine cooling systems.

The purpose of this SAE Recommended Practice is to establish a testing procedure to determine the performance capability of the engine cooling system and, if so equipped, the charge air cooling system on on-highway trucks with liquid-cooled internal combustion engines.

This SAE Recommended Practice applies to engine coolant concentrate, ethylene glycol base, for use in automotive and light truck engine cooling systems.

The testing technique outlined in this SAE Recommended Practice was developed as part of an overall program for testing and evaluating fuel consumption of heavy-duty trucks and buses. The technique outlined in this recommended practice provides a general description of the type of equipment and facility which is necessary to determine the power consumption of these engine-driven components. It is recommended that the specific operating condition suggested throughout the test be carefully reviewed on the basis of actual data obtained on the specific vehicle operation and the fan. Because of the variation in size, shape, configuration, and mountings available in cooling fans, specific test devices have not been included.

This standard covers glycol-type compounds which, when added to engine cooling systems at concentrations of 40-70% by volume of coolant concentrate in water, provide corrosion protection, lower the freezing point, and raise the boiling point of the coolant. Such compounds are intended for a minimum of 1 year (approximately 12,000 miles) service in a properly maintained cooling system. (Reference: SAE HS-40, Maintenance of Automotive Engine Cooling Systems.) Coolants meeting this standard do not require the use of supplementary materials. For additional information on engine coolants, see SAE J814.