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					Originally Posted by NickCats
					
				 All I have used so far is Z-5 and I am very happy with the results.
 bmussatti, what is the difference between Z-2 and Z-5 ?
 
 Nick
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Hi,
      The Z5 has some scratch filler in it and is 95% Optically Pure (Transparent) while the Z2 lacks the fillers and is 98% Optically Pure (according to Sal Zaino).  In plain english, the Z2 shines a little better...
Happy Motoring!... Jim'99