A brief history of gasoline: Searching for the magic bullet
Interesting topic. I recently got my first own car (have been driving for almost two decades, though) and started to learn about how it works in some detail. Regarding gasoline - I just found out that my car (as most cars since the 2000s) works just fine with E10 (up to 10% bio ethanol). In Germany, though, this is still a heated subject due to intentional misinformation around 2010 by oil lobby and associates (ADAC first and foremost).<p>Here&#x27;s what I learned about E10:<p>It&#x27;s likely about as energetic as regular fuel (the chemical energy reasoning falls short due to side effects).<p>Its Octane Number is higher than regular fuel due to ethanol&#x27;s Octane Number.<p>It burns cleaner (less coking) and also has a cleaning effect - again due to the higher ethanol content.<p>It&#x27;s hydrophile qualities are actually an advantage as that means it binds water which is entering the system.<p>Some gas stations sell regular as E10 (and then cheaper) because it isn&#x27;t economic or possible for them to have yet another type of fuel in reserve.<p>The reason why oil industry hates E10 is because it is more expensive for them while by law (in EU) they are forced to sell it cheaper.<p>---<p>There&#x27;s only one catch which I still didn&#x27;t wrap my head around.<p>My Mazda brings 160k kms to the table and features a &quot;maintenance free&quot; in-tank fuel filter which is somewhat difficult to replace. Now I&#x27;m a bit worried that using E10 will release built up residue attached to the tank and clog the fuel filter. And I don&#x27;t know how fast this would take place.