“Up to 40% of the hydrocarbons emitted by road transport evaporate from the fuel systems of cars with gasoline engines.”
https://www.witpress.com/Secure/elibrary/papers/UT15/UT15018FU1.pdf
So you cite to me a Russian study promoting a surfactant as a remedy and calls MTBE the most volatile compound gasoline. Are you positive they have Evaporative Emission Controls in Russia. Give me a break.
I do not buy that at all. If 30-40% of my gas was bleeding into my garage as a vapor, I would smell it big time.
The context to these loss comments was someone saying EV batteries lose 1%/day while not in use, as they do. All batteries lose the charge over time.
My car can sit for a month or longer with no measurable loss of fuel.