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Modern so-called clean diesel vehicles use a solution containing urea and ionized water to help control exhaust emissions. The solution is injected into the exhaust stream, where it reacts with the vehicle’s catalyst to reduce harmful emissions in the exhaust stream.
The diesel emissions fluid is carried onboard in its own reservoir. They are typically quite large, allowing very extensive mileages before requiring replenishment. The tanks are usually fitted with a special spout connector to ease refills, but they can be located in places that require the removal of other parts.
With every routine maintenance service, have our mechanic check the diesel emissions fluid levels on your car, and refill as needed.
Since the car will not start or restart once it runs out of diesel emissions fluid, it’s critical to maintain adequate levels.