More consumption by alcohol blending?

In the case of super-benzene, a 10% proportion of ethylacohol or ethanol is to be added. Since alcohol has a lower calorific value (about 60%) than petrol, this results in an increase in consumption of about 4%. If that's what I'm counting on. You're supposed to pay more for that. Mineral oil tax not only on petrol, but also on alcohol and also on alcohol, which means more money in the cash register of the corporations and more money in the cash register of the finance minister. Logical episode: Less money in the driver's cash register.
Clever exploitation of the citizen under the pretext of environmental pollution.