What are evaporative emmissions?
 

Quote: "Unlike most PZEV compliant engines, the new version of the 2.5-liter Subaru Boxer engine delivers zero evaporative emissions with no loss in horsepower compared with the standard 2.5-liter engines."

Question is: What are evaporative emmissions?

http://biz.yahoo.com/prnews/050805/phf003.html?.v=21



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