The hydrous ethanol steam was burned or mix-burned on a gasoline or diesel engine with the intake premixing method.

采用进气道预混合方式，在汽油机(柴油机)上燃用含水乙醇蒸气或者掺烧含水乙醇蒸气。

youdao

Also, some Brazilian states (3 of 27) charge a lower VAT (Value Added Tax) on hydrous ethanol sold to Flex-Fuel cars compared to VAT imposed on gasoline at the pump.

FORBES: Further Implications Of The U.S. Ethanol Tariff

As an example, Jamaica imports HYDROUS (with 5% water content) ethanol from Brazil and removes that water in Jamaica to turn it into ANHYDROUS ethanol (nearly 0% water).

FORBES: Further Implications Of The U.S. Ethanol Tariff