There is Not Enough Carbon Monoxide In Diesel Exhaust To Kill


Holocaust deniers say:

Diesel engine exhaust "always" contains "less than 1% carbon monoxide."1

In 1984, Friedrich Berg, an American Holocaust denier, wrote an that article appears to be technically impressive because it is full of charts, graphs and data.2 The article leaves the general reader with the impression that it is science so it must be true.
However, two scientific studies done by engineers show that it is possible for diesel engine exhaust to contain lethal amounts of carbon monoxide:
The Holtz and Elliott study:
The R.E. Pattle et al study:
  • In Mode A, in which the engine was run according to the manufacturer’s specifications, the animals survived the entire five hours and recovered with no ill effects.
  • In Modes B and C, in which the engine was slightly modified, some of the animals died in the fourth hour of the experiment and others died several days later from severe lung damage.
You may read this study at
The Holocaust deniers’ dismiss the findings of the Pattle et al study by claiming that the death of the animals in Mode D took longer than 30 minutes-which is what the eyewitnesses say was about the time it took to kill a roomful of human beings.
But comparing the conditions for the animals in the Pattle et al study with the conditions in the gas chambers or gas vans for people is like comparing apples and oranges:
First : The method of introduction of the animals into the cage and the people into the gas chambers was entirely different.
Second :The size of the enclosure relative to their occupants was highly unequal.


Murdering people using diesel engine exhaust is not "idiotic" or "simply incredible" as Berg claims. A diesel engine can easily be mistuned to produce a lethal amount of carbon monoxide. Adjusting the fuel pump or blocking the air intake is not rocket science and does not require mechanical or engineering skills that were outside the capabilities of the SS technicians who ran the engines.
It is therefore perfectly reasonable that panicked human beings who were crammed into a small space in a gas chamber or gas van, which was then filled with the smoky, hot, toxic exhaust from a large, powerful diesel engine, could be overwhelmed and die within 30 minutes.


1. Friedrich Berg, "The Diesel Gas Chambers: Myth within a Myth," p. 6/19 at
2. Berg’s original paper, "The Diesel Gas Chambers: Myth Within a Myth," was published in the Journal for Historical Review in 1983. It can be found at He has since expanded on his original theme in several other articles which can be found at his website He took the original paper and expanded it and divided it into three parts: Part 1, 17 pages,; Part 2, 15 pages,; and Part 3, 14 pages, He has also written "Poison Gas Über Alles" at and "Self-assisted Holocaust Hoax,"
3. R.E. Pattle, H. Stretch, F. Burgess, K. Sinclair and J.A.G. Edgington, "The Toxicity of Fumes From a Diesel Engine Under Four different Running Conditions," British Journal of Industrial Medicine, 1957, 14, p. 42 at
4. Pattle et al, "The Toxicity of Fumes From a Diesel Engine Under Four different Running Conditions," British Journal of Industrial Medicine, 1957, 14, p. 42 at
5. Eugen Kogon, Hermann Langbein, and Adalbert Rückerl, editors. Nazi Mass Murder: A Documentary History of the Use of Poison Gas (Yale University Press, 1994), p. 128.
6. The letter is available at
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