65E, 75E, 85E and 95E Agricultural Tractors Caterpillar

Re-refined base oils are acceptable for use in Caterpillar engines and in this machine if these oils meet the performance requirements that are specified for a particular compartment. Each compartment has requirements for lubrication and requirements for lubrication specifications in order to ensure proper lubrication and life of the system. Re-refined base oils can be used exclusively in finished oil or in a combination with new base oils.

The process that is used to make re-refined oil should adequately remove all wear metals that were in the used oil and all additives that were in the used oil. Vacuum distillation and the hydrotreating of used oil are acceptable processes that are used for producing a re-refined base oil. Filtering is inadequate for the production of high quality, re-refined base oils from used oil.