@ThomHartmann@mstdn.social You and a caller mentioned Diesel vs Gas price in the US. IMHO, I think part of it is that Diesel and Kersosene(K1) and Jet Fuel are almost the same for most practical purposes, and also used for heating. Most vehicles that use Diesel in the US are commercial, and that's a different market that "consumers", so the price relation has inverted over decades.