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Field Performance of SAE 15W-40 Multigrade Oils in DDA 8V-92 Engines Using Current and New Piston Fire Rings
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1987 by SAE International in United States
Annotation ability available
Chevron Research Company and Detroit Diesel Allison (DDA) conducted a cooperative field test to determine the performance of SAE 15W-40 multigrade oils in two-cycle engines.
The field test utilized 42 new 8V-92TA engines in new Kenworth trucks. A unique aspect of this field test was that all the engines had premeasured piston rings and cylinder liners. The latest DDA fire ring designs were also incorporated.
There are three significant conclusions:
Grooveless fire rings provided 35% lower wear than the current grooved design.
Properly balanced SAE 15W-40 multigrade oils provided satisfactory service.
Sulfated ash in the range of 1.0% to 1.85% had no significant effect on exhaust valve deposits.
CitationMcGeehan, J. and Painter, L., "Field Performance of SAE 15W-40 Multigrade Oils in DDA 8V-92 Engines Using Current and New Piston Fire Rings," SAE Technical Paper 870402, 1987, https://doi.org/10.4271/870402.
- McGeehan J. A. “Effect of Piston Deposits, Fuel Sulfur, and Lubricant Viscosity on Diesel Engine Oil Consumption and Cylinder Bore Polishing,” SAE Paper No. 831721 1983
- Henriksen B. S. “Series 92 - Fuel Economy Improvements,” SAE Paper No. 831202
- Fellberg M. Huber J. W. Duerr J. W. “The Development of Detroit Diesel Allison's New Generation Series 53 Engines,” SAE Paper No. 850259
- Hamperian N. H. Hoffman C. S. “The Detroit Diesel Crosshead Piston,” SAE Paper No. 710129 1971