The Truth About SCR
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SCR engine maintenance intervals will remain the same as 2007, with one additional service point: changing the DEF filter. The DEF filter should only need to be changed every 200,000 to 300,000 miles and can be changed in minutes. With SCR, engine components last longer due to less heat generated and fewer contaminants. The result is longer overall engine life. For In-Cylinder EGR solutions, maintenance intervals remain the same.
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Thats the number of SCR test miles that have been logged throughout the United States so far. It's proven technology.
That’s how far you can drive on less than one 23-gallon tank of DEF. DEF re-fills are needed only once every 2.5 fuel fillings, or roughly every 7,500 miles.