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               Originally Posted by 
               Pleiades 
                
               
             
               PSA Group diesel engines (Peugeot, Citroen, Ford, Jaguar and Land Rover) have relied on urea to regenerate their catalysts for nearly ten years. 
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         Are you sure? 
         
        
 I've had 4 Landrovers over the past 10 years, and never had to fill a Urea tank. 
         
         
        
 Whereas the Quattro actually has a little filler point next to the filler er, point..