Значение и использование

This test method was developed to evaluate automotive engine oils for protection against oil thickening and engine wear during moderately high-speed, high-temperature service.

The increase in oil viscosity obtained in this test method indicates the tendency of an oil to thicken because of oxidation. In automotive service, such thickening can cause oil pump starvation and resultant catastrophic engine failures.

The deposit ratings for an oil indicate the tendency for the formation of deposits throughout the engine, including those that can cause sticking of the piston rings in their grooves. This can be involved in the loss of compression pressures in the engine.

The camshaft and lifter wear values obtained in this test method provide a measure of the anti-wear quality of an oil under conditions of high unit pressure mechanical contact.

The test method was developed to correlate with oils of known good and poor protection against oil thickening and engine wear. Specially formulated oils that produce less than desirable results with unleaded fuels were also used during the development of this test method.

The Sequence IIIF engine oil test has replaced the Sequence IIIE test and can be used in specifications and classifications of engine lubricating oils, such as:

5.6.1 Specification D 4485,

5.6.2 Military Specification MIL-PRF-2104, and

5.6.3 SAE Classification J183.

Область применения

1.1 This test method covers an engine test procedure for evaluating automotive engine oils for certain high-temperature performance characteristics, including oil thickening, varnish deposition, oil consumption, as well as engine wear. Such oils include both single viscosity grade and multiviscosity grade oils that are used in both spark-ignition, gasoline-fueled engines, as well as in diesel engines.

Note 1—Companion test methods used to evaluate engine oil performance for specification requirements are discussed in SAE J304.

1.2 The values stated in SI or other units are to be regarded as the standard. The values given in parentheses are provided for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.

1.4 This test method is arranged as follows:

SubjectSectionScope1Referenced Documents2Terminology3Summary of Test Method4Significance and Use5Apparatus6Laboratory6.1Drawings6.2Specified Equipment6.3Test Engine6.4Engine Parts6.4.1Engine Speed and Load Control6.5Sequence IIIF Fluid Conditioning Module6.6Engine Cooling System6.6.1Flushing Tank6.7Coolant Mixing Tank6.8Condenser Cooling Systems6.9Engine Oil-Cooling System6.10Fuel System6.11Induction Air Supply Humidity, Temperature, and Pressure6.12Temperature Measurement6.13Thermocouple Location6.13.1Air-to-Fuel Ratio Determination6.14Injector Flow Testing6.14.1Exhaust and Exhaust Back Pressure Systems6.15Blowby Flow Rate Measurement6.16Pressure Measurement and Sensor Location6.17Reagents and Materials7Test Fuel7.1Engine and Condenser Coolant7.2Coolant Additive7.3Coolant Preparation7.4Pre-Test Cleaning Materials7.5Sealing and Anti-seize Compounds7.6Test Oil Sample Requirements8Preparation of Apparatus9Condenser Cleaning9.1Intake Manifold Cleaning9.3Cleaning of Engine Parts (other than the block and heads)9.4Engine Block Cleaning9.5Cylinder Head Cleaning9.6Engine Build-up Procedure9.7General Information9.7.1Special Parts9.7.2Hardware Information9.7.3Fastener Torque Specifications and Torquing Procedures9.7.4Parts Replacement9.8Engine Block Preparation9.9Piston Fitting and Numbering9.10Piston Ring Fitting9.10.1Pre-Test Camshaft and Lifter Measurements9.11Camshaft Bearing Installation9.12Camshaft Installation9.13Main Bearings9.14Crankshaft Installation9.14.1Main Bearing Cap Installation9.14.2Crankshaft Sprocket9.15Camshaft Sprocket and Timing Chain9.16Crankshaft End Play9.17Piston Pin Installation9.18Piston Installation9.18.1Harmonic Balancer9.19Connecting Rod Bearings9.20Engine Front Cover9.21Coolant Inlet Adapter9.22Oil Dipstick Hole9.23Oil Pan9.24Cylinder Head Assembly9.25Adjustment of Valve Spring Loads9.26Cylinder Head Installation9.27Hydraulic Valve Lifters9.28Pushrods9.29Valve Train Loading9.30Intake Manifold9.31Rocker Covers9.32Water Inlet Adapter9.33Condenser9.34Coolant Outlet Adapter9.35External Oil Cooling System9.36Oil Sample Valve9.37Ignition System9.38Throttle Body9.39Accessory Drive Units9.40Exhaust Manifolds, Water-Cooled9.41Engine Flywheel9.42Pressure Checking of Engine Coolant System9.43Lifting of Assembled Engines9.44Mounting the Engine on the Test Stand9.45External Cooling System Cleaning9.46Engine Coolant Jacket Cleaning (Flushing)9.47Coolant Charging9.48Test Oil Charging9.49Engine Oil Pump Priming9.50Calibration10Laboratory and Engine Test Stand Calibration10.1Testing of Reference Oils10.2Reference Oil Test Frequency10.3Reporting of Reference Oil Test Results10.4Evaluation of Reference Oil Test Results10.5Status of Non-Reference Oil Tests Relative to ReferenceOil Test10.6Status of Test Stands Used for Non-Standard Tests10.7Data Acquisition and Control10.8Sample Rate10.8.1Measurement Accuracy10.8.2Temperature10.8.3Pressure10.8.4Flow10.8.5Speed10.8.6Load10.8.7Measurement Resolution10.8.8System Time Response10.8.9Quality Index10.8.10Engine Operating Procedure11Dipstick and Hole Plug11.1Dipstick Hole O-ring11.2Engine Start-up and Shutdown Procedures11.3Start-up11.4Scheduled Shutdown11.5Non-Scheduled Shutdowns11.6Oil Sampling11.7Oil Leveling11.8Air-to-Fuel-Ratio Measurement and Control11.9Air-to-Fuel Ratio Verification11.10Blowby Flow Rate Measurement11.11NOx Determinations11.12Data Recording11.13Initial Run (10 min)11.14Engine Oil Quality Testing (80 h)11.15Test Termination11.16Determination of Test Results12Engine Disassembly12.2Preparation of Parts for Rating of Sticking, Deposits, and Plugging12.3Piston Deposit Rating12.4Post-Test Camshaft and Lifter Wear Measurements12.5End-of Test Used Oil Sample Testing12.6Viscosity Test12.7Testing Oil Samples for Wear Metals12.8Blowby Flow Rate Measurements12.9Oil Consumption Computation12.10Photographs of Test Parts12.11Retention of Representative Test Parts12.12Severity Adjustments12.13Determination of Operational Validity12.14Report13Report Forms13.1Use of SI Units13.2Precision of Reported Units13.3Deviations from Test Operational Limits13.4Precision and Bias14Keywords15AnnexesAnnex A1The Role of the ASTM Test Monitoring Center (TMC) and the Calibration ProgramAnnex A2Sequence IIIF Test Parts Replacement GuidelinesAnnex A3Sequence IIIF Determination Volume of Engine Oil in PanAnnex A4Sequence IIIF Test Fuel AnalysisAnnex A5Sequence IIIF Test ReportingAnnex A6Sequence IIIF Test Air-to-Fuel Ratio Control Flow ChartAnnex A7Sequence IIIF Test Set Points and Control StatesAnnex A8Sequence IIIF Quality Index Upper and Lower ValuesAnnex A9Sequence IIIF Engine Oil Level WorksheetAnnex A12Blowby Flow Rate DeterminationAnnex A12Safety PrecautionsAnnex A13Sequence IIIF Blueprint ListingAnnex A13Fluid Conditioning Module ComponentsAnnex A14AppendixSequence IIIFHD Test ProcedureAppendix X1