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Guide to Measuring Fuel Dilution in Lubricating Oil 

FINAL_FDM_Q6000_spectro-1.pngFuel dilution in oil can cause serious engine damage. High levels of fuel (>2%) in a lubricant can result in decreased viscosity, oil degradation, loss of dispersancy, and loss of oxidation stability. Fuel dilution is one of the most important lubricant failure modes in internal combustion engines. It usually occurs due to improper fuel-to-air ratio. Fuel dilution can also occur due to excessive idling, piston ring wear, or defective injectors and loose connectors.



Measurement Techniques

  • Gas Chromatography
  • Viscosity
  • Flash Point Testing
  • FTIR Spectroscopy
  • Surface Acoustic Wave Sensing