Low-Temperature Pumpability of U.S. Army Diesel Engine Oils

Abstract

Borderline oil-pumpability temperatures (BPT's) were determined for U.S. Army diesel engines by cranking experiments conducted in a cold box. The variables investigated included: four different diesel engine types; four different oil viscosity grades; and three different viscosity index improver chemical types. In general, for a given oil, the decreasing order of engine severity (i.e., highest BPT) was: the Continental LDT-465-1C and the Cummins VTA-903T were the most severe, and were approximately equivalent. The GM 6.2L engine was the next least severe with the DDC 6V-53T engine being the overall least severe. The different viscosity index improver chemistries of specially blended test oils included: olefin copolymer (OCP), styrene-isoprene polymer (SI), aNd polymethacrylate (PMA). The PMA-containing 15W-40 oils had superior low-temperature oil pumpability performance in each engine in which they were evaluated.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1987
Accession Number
ADA197847

Entities

People

  • Alan F. Montemayor
  • Edward A. Frame
  • Edwin C. Owens

Organizations

  • Southwest Research Institute

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Bench Tests
  • Chemical Synthesis
  • Chemistry
  • Classification
  • Compression Ignition
  • Diesel Engines
  • Engineering
  • Failure Mode And Effect Analysis
  • Fuel Injection
  • Fuel Injectors
  • Fuel Systems
  • Internal Combustion Engines
  • Military Research
  • Regression Analysis
  • Research Facilities
  • Test Methods
  • Warfare

Readers

  • Petroleum Engineering
  • Polymer Science and Technology

Technology Areas

  • Microelectronics