https://holocaustencyclopedia.com/techn ... r-gas/776/
However, there are some objections to this position. You can read about them here:
https://www.hdot.org/debunking-denial/d ... s-engines/
https://holocaustcontroversies.blogspot ... -vans.html
One objection I found really silly was that it wouldn't be good to use them in enclosed spaces. Well obviously if producer gas was used, the method used to administer it would be different. Another objection is that it is more explosive. This is Friedrich Berg's response:
https://archive.codohforum.com/20230609 ... 442#p38442As I have explained again and again, gasoline engine exhaust, in the good old days before catatytic converters, contained about 7% carbon monoxide. That percentage could be easily increased to 12% by misadjusting the carburetor.
Producer gas contained from 18% to as much as 35% carbon monoxide. If all one wanted to do was kill people, one need never actually fill a chamber completely with 35% CO--just let enough of the CO-rich producer gas blow into the chamber to achieve a level of about 10% average CO and then shutoff the flow from the generator. So long as the level of CO is below 12% (which is still extremely lethal) there will be NO danger of explosion.
I am not an expert on producer gas, but since Berg was knowledgeable on this, I figured his view may carry some weight. Hans in his article appears to agree with this as he cited a source claiming about the same thing. It may be objected that gasoline has around a 10-14% CO concentration, so there may be no difference between them after all if they did want to go below the explosion range. However, according to the Encyclopedia:
So regardless of how much "safe CO" they would have used to avoid explosion, it would have made more sense to go with the method which they had more fuel for regardless. Also they could still reach the "safe non-explosive limit" faster than gasoline anyway.Therefore, when the so-called “Final Solution” was reaching its peak in 1942 and 1943, Germany had tens of thousands of engineers and mechanics familiar with this lethal-gas technology, hundreds of thousands of drivers capable of operating these devices, and an equal number of these poison-gas devices present literally everywhere, with no limitation on fuel.
Finally, there is the argument that it would be too long to start up, therefore it wouldn't be efficient to use. One objection to this is that they used it to a significant extent on the battlefield because of liquid fuel storage. On the battle field, you may need to react quickly. So it doesn't make any sense to say the slow startup is bad for extermination but just fine for the battlefield. Second, from what I have been able to see, it takes about 2-3 minutes to start up. That's what is said here on this forum post:
http://forum.driveonwood.com/t/how-fast ... art/5504/3
Here are videos of him starting up his wood gas car:
So yes, I'll concede it does take a little bit longer to start up than a gasoline engine, but it doesn't appear to be that much dramatically longer.
In conclusion, while the opposition has pointed out some legitimate drawbacks to producer gas, I don't think these drawbacks are nearly strong enough to outweigh how useful they would have been. The fact that producer gas was never claimed to be used despite its likely efficient use and significant amount of use elsewhere is evidence (although not 100% certain evidence) against the extermination claims.