Low Temperature Crankcase Lubricants

Abstract

The diluent action of gasoline and a group of aliphatic diesters on a number of petroleum and synthetic oils has been investigated. It was found that these diluents are not effective pour point depressants for paraffin-base oils as they are poor solvents for wax and therefore do not greatly lower the temperature at which it precipitates. They are much more efficient pour point depressants for the synthetic polyalkylene glycol and polyethylene oils and naphthalene-base petroleum oils as they are free from waxy material. The effectiveness of diluents in lowering the pour points and viscosities of these oils is inversely proportional to the viscosity and directly proportional to the concentration of the diluent.

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Document Details

Document Type
Technical Report
Publication Date
Mar 30, 1948
Accession Number
AD1207408

Entities

People

  • C. M. Murphy
  • Carl Lamb

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Alkanes
  • Biodegradable Materials
  • Dielectric Polymers
  • Films
  • Fossil Fuels
  • Gasoline
  • Inorganic Materials
  • Materials
  • Naphthalenes
  • Organic Materials
  • Petroleum
  • Precipitates
  • Specialty Uses Of Chemicals
  • Synthetic Oils
  • Viscosity

Readers

  • Petroleum Engineering
  • Regression Analysis.