| http://www.w3.org/ns/prov#value | - It should be mentioned that the final versions of these synthetic fuels had been very expensive, up to $ 300 per litre, and also in some cases very poisonous.De facto these ???fuels??? fitted into the standard pump specifications as fixed by ASTM, DIN, BS, or other norms, but in practice they had been everything else than commercial gasoline!
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