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by Michael Davies on December 29th, 2004

Michael Davies

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Can used engine oil be used as fuel for a diesel car?

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  • by Shabba on May 5th, 2005

    Shabba

    Not that I'm aware of. The two compounds are very different.

    The two would be completely incompatible. Diesel engines operate by burning diesel. It is specifically designed to use this type of fuel. Engine oil does not have the same properties as diesel. It does not burn the same, it would be too thick for the fuel system, not to mention the fact that used engine oil would have so many impurities (even if you filtered out the particles) that it would foul the engine straight away.

    The only case I've heard of oil being used is as a SOURCE of fuel. Biodiesel is created by chemically converting used cooking oil, but the end result is still a diesel compound, not the oil.

    Comments

    • You are wrong Shabba, i have been using used motor oil in my car mixed with diesel at a ratio of 50-50 (after filter it with a 5 micron filter)for two years now 55,000 miles so far w/o problems.

      erizo715

      by erizo715 on April 25th, 2010

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