Diesel engine endurance tests using JP-8 fuel blended with used engine oil. Interim report November 1996--December 1997
Tests were done to examine the feasibility of disposing of used engine oil from military vehicles by blending it with JP-8 engine fuel to be used in diesel vehicles. Two Army diesel engines were evaluated in cyclic endurance dynamometer test procedures using JP-8 fuel blended with 7.5% vol used oil. Results were compared to baseline performance using neat JP-8 fuel. The following major differences were observed when using blended fuel: Significant ashy deposits were found in the pre-combustion chamber of the 4-cycle diesel engine; indications of imminent exhaust valve burning (streaking) were found on the exhaust valves in the 2-cycle diesel engine. For both engines, condition was such that continuous use of 7.5 %vol blend would not be recommended. Considering it would take between 19--68 years for an Army engine to reach the end of endurance test condition, use of blended fuel 1 or 2 times per year is judged acceptable from an endurance standpoint.
- Research Organization:
- Southwest Research Inst., TARDEC Fuels and Lubricants Research Facility, San Antonio, TX (United States)
- OSTI ID:
- 658712
- Report Number(s):
- AD-A--349754/XAB; CNN: Contract DAAK70-92-C-0059
- Country of Publication:
- United States
- Language:
- English
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