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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Air oil separator instead of a catch can?
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<blockquote data-quote="Rustler" data-source="post: 1328901" data-attributes="member: 31456"><p>I don't want to speak for OP, but I thought he was asking about whether anyone makes an Air Oil Separator (AOS) for the Gen2 3.5L, as opposed to the Oil Catch Cans that are often discussed here? </p><p></p><p>My understanding of the difference is that the catch can actually holds the liquid results of the blow by in a can that must be periodically drained, whereas an AOS will separate the oil from the air that is returned to intake, but return that oil back to the crank case. The advantage to the AOS being less maintenance (doesn't need to be drained) and less issue in cold temps while still preventing oil from coating the intake side, but the disadvantage is that it doesn't remove any contaminants from blow by that might be returned to the crankcase with an AOS. </p><p></p><p>I have another twin turbocharged car that was designed with an AOS from the factory, and there is no additional maintenance. It might, however, involve more engineering that can't be retrofitted?</p><p></p><p>Edit: AOS will eventually fail, so "no additional maintenance" isn't really true, it's more, much less maintenance.</p></blockquote><p></p>
[QUOTE="Rustler, post: 1328901, member: 31456"] I don't want to speak for OP, but I thought he was asking about whether anyone makes an Air Oil Separator (AOS) for the Gen2 3.5L, as opposed to the Oil Catch Cans that are often discussed here? My understanding of the difference is that the catch can actually holds the liquid results of the blow by in a can that must be periodically drained, whereas an AOS will separate the oil from the air that is returned to intake, but return that oil back to the crank case. The advantage to the AOS being less maintenance (doesn't need to be drained) and less issue in cold temps while still preventing oil from coating the intake side, but the disadvantage is that it doesn't remove any contaminants from blow by that might be returned to the crankcase with an AOS. I have another twin turbocharged car that was designed with an AOS from the factory, and there is no additional maintenance. It might, however, involve more engineering that can't be retrofitted? Edit: AOS will eventually fail, so "no additional maintenance" isn't really true, it's more, much less maintenance. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Engine Discussion and Performance Mods
Air oil separator instead of a catch can?
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