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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
California E85 on Stock Gen2 (is it a FFV)?
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<blockquote data-quote="ayoustin" data-source="post: 1559769" data-attributes="member: 28480"><p>The main benefits of ethanol are its higher octane and (more importantly) its superior latent heat of vaporization. Pretty much what that means is it's better able to cool the air charge and cylinder temps in the engine. Cooler air charge means higher oxygen content which means more power.</p><p></p><p>Also it burns cleaner than gasoline and is more environmentally friendly to produce.</p><p></p><p>Downsides are it has a lower energy density so more of it is needed to make the same amount of power vs gasoline, which means fuel economy goes down a bit, though usually it's so cheap that there's still something of a savings benefit vs 87 octane gas (while having higher octane than 93).</p><p></p><p></p><p>Lots of people freak out of about ethanol destroying fuel systems that aren't rated for it. It can cause certain types of rubber to swell. This is not really true for any modern vehicle. Anything made in the past 20 years or so won't be damaged by ethanol. Don't confuse that with methanol. Methanol will destroy any factory fuel system in a short amount of time.</p><p></p><p>Some people notice deposits or worse, clogging in their fuel system after running ethanol. This is not good but it's not something caused from ethanol itself, this is usually from 1 of 2 things:</p><p style="margin-left: 20px">1. Ethanol causes varnish and other deposits from gasoline to loosen up inside the fuel system that had otherwise just been attached to a surface in the fuel system.</p> <p style="margin-left: 20px">2. The ethanol was purchased from a low quality station, meaning the station is keeping the ethanol in an old tank and the tank is filled with deposits from other previous fuels.</p> <p style="margin-left: 20px"></p><p>What I always tell people who are considering switching over to ethanol, alternate fuel types for the first month or so to keep large deposits from becoming dislodged all at once, or run a fuel system cleaner prior to running exclusively ethanol. And buy ethanol from large chain stations, don't buy ethanol from smaller gas stations. The regulations on ethanol are much less stringent than gasoline, hence why the percentage of ethanol in E85 can vary from 51% to 83% at the pump so you're more likely to get good quality ethanol that's deposit free from a more reputable fuel company.</p></blockquote><p></p>
[QUOTE="ayoustin, post: 1559769, member: 28480"] The main benefits of ethanol are its higher octane and (more importantly) its superior latent heat of vaporization. Pretty much what that means is it's better able to cool the air charge and cylinder temps in the engine. Cooler air charge means higher oxygen content which means more power. Also it burns cleaner than gasoline and is more environmentally friendly to produce. Downsides are it has a lower energy density so more of it is needed to make the same amount of power vs gasoline, which means fuel economy goes down a bit, though usually it's so cheap that there's still something of a savings benefit vs 87 octane gas (while having higher octane than 93). Lots of people freak out of about ethanol destroying fuel systems that aren't rated for it. It can cause certain types of rubber to swell. This is not really true for any modern vehicle. Anything made in the past 20 years or so won't be damaged by ethanol. Don't confuse that with methanol. Methanol will destroy any factory fuel system in a short amount of time. Some people notice deposits or worse, clogging in their fuel system after running ethanol. This is not good but it's not something caused from ethanol itself, this is usually from 1 of 2 things: [INDENT]1. Ethanol causes varnish and other deposits from gasoline to loosen up inside the fuel system that had otherwise just been attached to a surface in the fuel system. 2. The ethanol was purchased from a low quality station, meaning the station is keeping the ethanol in an old tank and the tank is filled with deposits from other previous fuels. [/INDENT] What I always tell people who are considering switching over to ethanol, alternate fuel types for the first month or so to keep large deposits from becoming dislodged all at once, or run a fuel system cleaner prior to running exclusively ethanol. And buy ethanol from large chain stations, don't buy ethanol from smaller gas stations. The regulations on ethanol are much less stringent than gasoline, hence why the percentage of ethanol in E85 can vary from 51% to 83% at the pump so you're more likely to get good quality ethanol that's deposit free from a more reputable fuel company. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
California E85 on Stock Gen2 (is it a FFV)?
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