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New Car That Uses Urine-Like Solution To Reduce Its Harmful Emissions

by Aruna on October 16, 2009 at 10:10 AM
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New Car That Uses Urine-Like Solution To Reduce Its Harmful Emissions

Mazda's new CX-7 four-wheel-drive uses a urine-like solution to cut its tailpipe emissions, indicates report.

According to a report by Fairfax Digital, the compound, called AdBlue, is a mixture of roughly one-third pure urea and two-thirds demineralized water.

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It is already widely used in the trucking industry in Europe and Australia and is common in diesel cars in Europe, but Mazda is the first to use the technology on a passenger vehicle in Australia.

The technology, called selective catalyst reduction, involves injecting the urea-based liquid into the car's exhaust system to turn NOx emissions into harmless nitrogen and water.
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The car also has a particulate filter to reduce the amount of soot emitted by the vehicle.

To guard against forgetful drivers not filling its AdBlue tank, the Mazda CX-7 diesel will cut its maximum speed if the level of AdBlue falls below a certain level.

The car will not start if the AdBlue tank is empty.

The 15.5-litre tank is mounted under the rear-floor of the CX-7 and Mazda recommends the task is undertaken by an authorized dealer as part of scheduled servicing.

A gauge and warning lamp warn the driver as the level drops.

The AdBlue tank requires refilling every 20,000 km and costs about 140 dollars a refill, which works out to roughly 7 dollars per 1000 km.

The new diesel Mazda continues a trend by car makers to reduce CO2 emissions by introducing smaller, less powerful petrol engines and diesel powerplants.

Source: ANI
ARU
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