This test is designed to obtain comparative performance data on re-refined and virgin 10W-30 motor oils and hydraulic oils in fleet use. The vehicles are provided by the Iowa Department of Transportation. The re-refined oils are the commercial product from Motor Oils Refining Company, MORCO, and the experimental product from the Bartlesville Energy Research Center, BERC. Forty-six vehicles which include station wagons, pickups, and trucks with hydraulic systems are being operated in normal use with one vehicle on virgin oil for each vehicle on re-refined oil. Oil change samples are being analyzed by standard ASTM methods. 4000, 8000, and 10,000 mile oil change intervals are being used. All vehicles were in operation by September, 1976. All test oils are performing satisfactorily at all three drain intervals. No significant differences have been noted among the three oils. Twelve of the vehicles on 4000 mile drain intervals have been changed to 8000 mile drain intervals to increase the stress on the oils. Final discrimination among oils will be based on deposit and wear ratings to be made by an independent laboratory and on the accumulated analytical data from oil change samples. 4 tables. (ERA citation 02:058327)
Fleet Test of Re-Refined Oil. First Annual Progress Report
1977
11 pages
Report
Keine Angabe
Englisch
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