Porsche Cleans Up


As of September 1 of this year, all new Porsche models with gasoline engines will be successively outfitted with particulate filters, with six- and eight-cylinder models receiving two filters, one for each cylinder block.

The gasoline particulate filter works according to the same principle as the filters in diesel vehicles. The exhaust gas flows from the engine to the tailpipe through one of many narrow channels connected either to the engine or to the exhaust side of the vehicle. The filters are there for good reason: tiny openings between any two such channels allow gas molecules, such as carbon dioxide, to escape unhindered, but not the much larger soot particles. Those larger particles get stuck and will then burn off when the exhaust gas reaches a temperature of over 600 degrees Celsius. There is no lack of oxygen for this burn-off process—when the driver lets up off the gas and the engine is in overrun mode.

The team behind this process has been working on converting the gasoline engines for filter operation for approximately two years.

In these vehicles, the soot particles collected in the filter must be burned off from time to time in a process that is known as regeneration. But it must also work in low outdoor temperatures and on short journeys. In those cases, the engine control unit ensures that the filter heats up by increasing the exhaust gas temperature, for instance, through another combustion or a higher engine speed.

With long periods of frost and a lot of short drives, a somewhat longer drive may be necessary for this regeneration to happen. The result: the cleanest Porsche models of all time.

Want to learn more about the steps Porsche is taking to make for an even cleaner engine? Contact us at Jaguar Land Rover Porsche Volvo of Greenville today.

Categories: News
Tags: Porsche