Piston Slap: Decomposition of the Fuel Composition Sensor?

Longtime TTAC commentor rrhyne56 writes:

Flex Fuel. I see it more and more. From what I’ve heard, this mainly means the vehicle has a fuel system that alcohol wouldn’t eat up. (Mainly, yes. — SM)

So here’s my question: do the more recent models of these vehicles have the ability to sense what level of alcohol is in the fuel lines and adjust the engine accordingly, to make best advantage of whatever current gasoline/alcohol or alcohol/gasoline mixture is entering the engine? I watched a build on Mighty Car Mods where the Haltech engineer was tweaking just such a system.

I know, I know, I ought to just Google it. But I thought it might make for some lively discussion.

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Kitman Begins His Literary Quest to Find the Truth About Ethanol

One struggles to count on more than one finger the number of fuels debated more than ethanol — in America, corn-based ethanol specifically. Many detractors claim ethanol’s disadvantages outweigh its benefits. Proponents for ethanol in our fuel supply contend the fuel’s geopolitical positives and other factors give ethyl alcohol much needed consideration. Unfortunately, both sides of the ethanol coin have a multitude of reasons for supporting or protesting the fuel beyond the immediately obvious.

Enter Automobile’s Jamie Kitman. The man is looking to separate the corn from the husk in a new multi-part series dubbed “ The War Against Ethanol.”

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Feinstein-Toomey Bill Seeks To Push Other Biofuels Over Corn Ethanol

With one attempt shot down thus far, two U.S. senators are issuing a standalone bill to reduce the use of corn-based ethanol at the pump.

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  • Dwford Will we ever actually have autonomous vehicles? Right now we have limited consumer grade systems that require constant human attention, or we have commercial grade systems that still rely on remote operators and teams of chase vehicles. Aside from Tesla's FSD, all these systems work only in certain cities or highway routes. A common problem still remains: the system's ability to see and react correctly to obstacles. Until that is solved, count me out. Yes, I could also react incorrectly, but at least the is me taking my fate into my own hands, instead of me screaming in terror as the autonomous vehicles rams me into a parked semi
  • Sayahh I do not know how my car will respond to the trolley problem, but I will be held liable whatever it chooses to do or not do. When technology has reached Star Trek's Data's level of intelligence, I will trust it, so long as it has a moral/ethic/empathy chip/subroutine; I would not trust his brother Lore driving/controlling my car. Until then, I will drive it myself until I no longer can, at which time I will call a friend, a cab or a ride-share service.
  • Daniel J Cx-5 lol. It's why we have one. I love hybrids but the engine in the RAV4 is just loud and obnoxious when it fires up.
  • Oberkanone CX-5 diesel.
  • Oberkanone Autonomous cars are afraid of us.