Straight Vegetable Oil as a Diesel Fuel?

Research output: NRELFact Sheet


Biodiesel, a renewable fuel produced from animal fats or vegetable oils, is popular among many vehicle owners and fleet managers seeking to reduce emissions and support U.S. energy security. Questions sometimes arise about the viability of fueling diesel vehicles with straight vegetable oil (SVO), or waste oils from cooking and other processes, without intermediate processing. But SVO and waste oils differ from biodiesel (and conventional diesel) in some important ways and are generally not considered acceptable vehicle fuels.
Original languageAmerican English
Number of pages2
StatePublished - 2021

NREL Publication Number

  • NREL/FS-5400-81331

Other Report Number

  • DOE/GO-102021-5649


  • straight vegetable oil
  • vegetable oil
  • waste oil


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