New Paper: Lubricating oil consumption

[wam]

We just added a new Technology Guide paper titled Measurement of Lubricating Oil Consumption, by Kent Froelund and Hannu Jääskeläinen. It's an overview of experimental, laboratory methods to quantify lube oil consumption in internal combustion engines. The discussed methods include direct measurement, gravimetric and volumetric, as well as radioactive and chemical tracer methods.

We are also putting finishing touches on a more general paper dealing with lube oil consumption, covering the sources of oil consumption and the lube oil formulation effects.

Happy reading!

[wam]

The paper on Lubricating Oil Consumption is now live . It discusses the sources of oil consumption, including the piston-ring-liner system, valve stems, the turbocharger, and crankcase ventilation. The paper also discusses the effects of engine transients and lube oil formulation on oil consumption. 24 pages, 19 figures.

Additional discussion of the piston-ring-liner system is included in another new paper titled Piston-Ring-Liner Design for Low Oil Consumption. This paper covers bore distortion, piston ring conformability, liner surface finish, piston ring stability, and piston design. 13 pages, 14 figures.

In summary, the engine lube oil topics are now covered by the following papers:

• Diesel Engine Lubricants
  
  • Lubricating Oil Consumption
    
    • Piston-Ring-Liner Design for Low Oil Consumption
    • Measurement of Lubricating Oil Consumption
  • API Oil Service Categories