1. Rounds , F. G. “ Soot from Used Diesel Engine Oils - Their Effects on Wear as Measured in 4 Ball Wear ,” SAE Paper No.810499.
2. Nagai , I. , Endo , H. , Nakamura , H. and Yano , H. “ Soot and Valve Train Wear in Passenger Car Diesel Engines ,” SAE Paper No.831757.
3. McGeehan , J. A. , Rynbrandt , J. D. and Hansel , T. J. “ Effect of Oil Formulations in Minimizing Viscosity Increase and Sludge Due to Diesel Engine Soot ,” SAE Paper No.841370.
4. Bardasz , E. A. , Cowling , S. V. , Ebeling , V. L. , George , H. F. , Graf , M. M. , Kornbrekke , R. E. and Ripple , D. E. “ Understanding Soot Mediated Oil Thickening Through Designed Experimentation - Part 1: Mack EM6-287, GM6.2L ,” SAE Paper No.952527.
5. Rounds , F. G. “ Soot from Used Diesel Engine Oils - Their Effects on Wear as Measured in 4-Ball Wear Tests ,” SAE Paper No.810499.