4 ms·
They aren't really, it is just that modern engines are incredibly tolerant of what you put in them. Some survey found that the different octane tanks get mis-fi
by galangalalgol 3y ago
They aren't really, it is just that modern engines are incredibly tolerant of what you put in them. Some survey found that the different octane tanks get mis-filled a large portion of the time with other octanes or higher ethanol ratings. Even within an octane rating what is in there varies a lot. The changes needed to make a four stroke work on propane is very small. And an old diesel engine will run on almost any liquid that will burn but not evaporate at stp. The cars will get smarter and be able to do better with different voltages at some point.
- AnotherGoodName 3y agoA lot of new cars are "Flex-fuel" and will take literally anything short of diesel. They just adjust timing to the octane rating. In the bay area there's a lot of E85 fuel stations which are ~half the price per gallon (~$2.50) and work with these cars. Slightly less milage but the price difference more than makes up for it. If your car has the 'flex-fuel' sticker you may as well take the cheaper fuel imho.
- deleted 3y ago[deleted]