Understanding the Smog Index on new vehicles - READ ONLY

6 messages,  Last post on Nov 06, 2007 at 10:44 AM

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#5 of 6 But all cars have the same rating. by nozferat

Nov 06, 2007 (9:58 am)

The index is not a direct measurement. It is a rating of a cars position relative to a standard for it's class.
 
Somehow that doesn't make sense because the rating for ALL cars is 0.38 for the 2007 year. Not just in that class. That number is on all cars for some reason.
 
It's still wierd if you ask me.

#6 of 6 maybe THIS will explain it by larsb

Nov 06, 2007 (10:44 am)

I think this will finally "clear the air" in regard to the Smog Index (Dang, I crack myseff up !!!)
 
Read this PDF
 
and this doc:
 
Click Me

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