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rv:diesel [2023/08/31 02:09] princess_fluffypants [Exhaust Soot] |
rv:diesel [2023/08/31 02:11] princess_fluffypants [Applicability] |
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**This is not a slight against any specific manufacturer**; | **This is not a slight against any specific manufacturer**; | ||
- | This article is also //not// anti-emissions. For a very long time, diesel engines were given an unreasonable exemption from having to meet the same emission standards that applied to gasoline engines for decades, even though diesel' | + | This article is also // |
==== Known Good Engines ==== | ==== Known Good Engines ==== | ||
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===== Exhaust Soot ===== | ===== Exhaust Soot ===== | ||
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- | Diesels put out a ton of soot, this is what gives diesel exhaust its characteristic big black clouds when under heavy load. To get rid of it, manufacturers use a particulate trap that collects the soot and uses extra-injected fuel to burn it away in a process that that can go over 2800 degrees. This works okay in vehicles that are driven hard all the time, like semi-trucks (Well the chambers eventually plug up, but it takes a while). | + | Diesels put out a ton of soot, this is what gave pre-emission |
But passenger vehicles’ light duty cycles don’t allow for automatic burning, so sometimes they have to perform forced burn cycles when the vehicle is parked. This uses a ton of extra fuel and upsets the owner, who doesn’t understand why their vehicle is running at a fast idle by itself and has superheated exhaust pouring out the back. Some early light trucks actually caught their plastic rear bumpers on fire. | But passenger vehicles’ light duty cycles don’t allow for automatic burning, so sometimes they have to perform forced burn cycles when the vehicle is parked. This uses a ton of extra fuel and upsets the owner, who doesn’t understand why their vehicle is running at a fast idle by itself and has superheated exhaust pouring out the back. Some early light trucks actually caught their plastic rear bumpers on fire. |