ASTM D6483 Standard Test Method for Evaluation of Diesel Engine Oils in T-9 Diesel Engine
4. Summary of Test Method
4.1 The test operation involves use of a Mack E7-350 V-MAC II diesel engine with a warm-up and a 1 h break-in, followed by a two-phase test consisting of 75 h at 1800 r/min and 425 h at 1250 r/min, both at constant speed and load.
4.2 Oil samples are taken periodically and are analyzed for viscosity increase and wear metals content.
4.3 Engine rebuild is required prior to each test. The engine power section is disassembled, solvent-cleaned, measured, and rebuilt, using all new pistons, rings, cylinder liners, and connecting rod bearings, in strict accordance with furnished specifications.
4.4 The engine crankcase is solvent-cleaned, and worn or defective parts are replaced.
4.5 The test stand is equipped with appropriate accessories for controlling speed, load, and various engine operating conditions.
5. Significance and Use
5.1 This test method was developed to evaluate the wear performance of engine oils in turbocharged and intercooled four-cycle diesel engines. Obtain results from used oil analysis and component measurements before and after test.
5.2 The test method may be used for engine oil specification acceptance when all details of the procedure are followed.
