Coba jelasin Lihat juga dari Pelincir dalam bahasa melayu dong

API 1509, Engine Oil Licensing and Certification System, 15th Edition, 2002. Appendix E, API Base Oil Interchangeability Guidelines for Passenger Car Motor Oils and Diesel Engine Oils (revised)

Boughton and Horvath, 2003, Environmental Assessment of Used Oil Management Methods, Environmental Science and Technology, V38

I.A. Inman. Compacted Oxide Layer Formation under Conditions of Limited Debris Retention at the Wear Interface during High Temperature Sliding Wear of Superalloys, Ph.D. Thesis (2003), Northumbria University, ISBN 1-58112-321-3

Mercedes-Benz oil recommendations, extracted from factory manuals and personal research

Measuring reserve alkalinity and evaluation of wear dependence

Testing used oil quality, list of possoble measurements

Lubricant Additives: Chemistry and Applications, Leslie R. Rudnick, CRC Press.