For decades, Holocaust deniers have claimed that the Saurer gas vans had to have diesel engines, and since diesel exhaust has lower carbon monoxide, they conclude the vans couldn’t have been used for murder. The argument is irrelevant as the RSHA turned chassis with gasoline engines into gas vans. A detailed refutation of the "diesel issue" argument was published ten years ago and has never been answered in substance to my knowledge (see Rebuttal of Alvarez on Gas Vans: Why the Diesel Issue is Still Irrelevant). Denier Alvarez’s new edition (2023) of his book "The Gas Vans" continues to repeat it, without a single source, counter-argument, or whisper of a rebuttal to the refutations that already exist.
Germar Rudolf’s entry "Saurer Company" in CODOH's Holocaust Encyclopedia tries a fresh variation:
He notes that the RSHA motor pool acquired a number of Saurer 5-ton chassis in 1942 and the company Gaubschat in Berlin built a cargo box on each chassis - "for an unspecified purpose". The historical consensus (or as Rudolf like to call it "orthodoxy") holds that these were mobile gas chambers. Rudolf argues that because gasoline-engined trucks were supposedly "much easier" to obtain from other manufacturers, the RSHA’s Saurers “must have had diesel engines".
Here’s where the things get interesting.
Rudolf concedes for the first time what deniers once swore was impossible and what we have pointed out at this blog: that Saurer did, in fact, produce gasoline-engine trucks during the war - in the French factory in Suresnes near Paris