Diesel Engine Lubricant Testing
SwRI simulates heavy-duty diesel engine commercial fleet operations in single-cylinder engine test stands.
A lubricant’s ability to inhibit component wear is a critical factor during standardized testing.
Diesel engine designs continue to evolve to meet ever-changing emissions and fuel economy requirements. The technologies in newer engines, such as high exhaust gas recirculation (EGR) and exhaust aftertreatment systems along with improved combustion systems and higher cylinder pressures, place increased demands on crankcase lubricants. Lubricants and lubricant test procedures also continue to evolve to meet these demands.
Southwest Research Institute (SwRI) is one of the oldest and largest service providers for the evaluation of engine lubricants used in diesel engines for factory fill and service fill requirements. Facilities and staff are available to evaluate lubricants against the American Petroleum Institute (API) CH-4, CI-4, CI-4 PLUS and CJ-4; CK-4 International Lubricant Standardization and Approval Committee (ILSAC) GF-4 and GF-5; European ACEA lubricant specifications and the Cummins, Mack, and John Deere requirements. Evaluations are also performed with respect to engine sludge, oxidation, wear (camshaft lobes, camshaft followers, piston rings, piston liners, and connecting rod bearings), oil consumption, piston deposits, and fuel economy. New design engine components are also evaluated to determine acceptability with current day lubricants.In addition to engine based testing, SwRI also performs all related analytical bench tests required to qualify lubricants.
SwRI has 43 test stands available for diesel lubricant test procedures, which utilize engines representative of heavy-duty diesel engines operating in modern commercial fleets and off-highway applications, including:
- Caterpillar 1-R
- Caterpillar 1K
- Caterpillar 1M-PC
- Caterpillar 1N
- Caterpillar 1P
- Caterpillar C13
- Cummins ISB
- Cummins ISM
- Detroit Diesel DD13
- GM RFWT
- Mack T-8
- Mack T-11
- Mack T-12
The current API Heavy-Duty Performance Category is CK-4/FA-4
lubricant testing • cran • Detroit Diesel DD13