Eden Autopro Automotive Tips: Diesel Emissions MaintenanceNov 10th, 2015
You’ve probably noticed a lot more BC drivers driving vehicles with diesel engines. Diesel is a very popular choice in much of the world and is becoming more commonplace here. North America is just starting to close the gap between fuel and diesel engines because we are generally less familiar with diesel engines, it would be useful to review emissions related details.
First off, diesel fuel is more energy dense than the same amount of non-diesel fuel so it generates more power per liter. However, it also produces more exhaust particulates. So scrubbing the soot out of the exhaust is vital. By law, modern diesel vehicles are required to have a diesel particulate filter (DPF) installed in the exhaust system. This special filter traps the particulates (soot). As the soot accumulates, the filter fills up fairly fast.
It would be very impractical to have to change these pricey filters often, so automobile manufacturers have designed systems that burn off the soot. Some systems are passive, allowing the soot to settle inside the filter and absorb heat from the exhaust until the temperature is high enough for the particulates in the trapped filter to combust and burn off. This process is called passive filter regeneration.
One system of active filter regeneration is accomplished by injecting a bit of diesel fuel into the engine at just the right time to heat the exhaust enough to burn off the particulates. Another method uses a fuel injector placed in the exhaust pipe upstream from the DPF to inject a bit of fuel into the exhaust stream to cause the particulates to combust. The engine management computer of your car controls these regeneration events.
The old days of a noisy diesel engines, belching clouds of black, sooty smoke on Port Moody roads are gone. Diesel emissions systems like Diesel Exhaust Fluid (DEF) and Diesel Particulate Filters (DPF) combine to bring all of the power and fuel economy of a diesel engine without all of the harmful and annoying side effects. You can trust in Eden Autopro to help you with your diesel engine. We will advise you on the vital routine maintenance schedules and warning signs of potential troubles so that you can be comfortable with your decision to go diesel.
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