Guess that experience from 350Z or any predecessor engine will help. Is catch can really so important for our cars which don't have direct fuel injection?
Carbonization is really painful on AUDI engines with FSI (Fuel Straight Injection) , or TFSI (Turbo FSI). My old 2.0T FSI with 82 000 km's on the clock didn't have any issues. But on other hand, there is owners in US which experienced problems after 1000 miles! Even RS4 are really sensitive and catch can should be factory fitted, due to liquid which looks like mud in catch can cas
BTW: Due to no big fuel quality difference and huge price mine 2nd hand TT used 95 RON fuel instead factory recommended 98 RON
__________________
-->
2005-6 Nissan Micra 1,3i CVT
72PS Red MY 98 -->
2006-8 Nissan Almera 1,5i N16
96PS Red -->
2007-8 Skoda Fabia Combi 1,2HTP 3 cylinder
60PS Green -->
2008-11 AUDI TT 2,0TFSI FWD S-tronic
200PS Red MY06 -->
2011 Nissan 370Z manual
White Pearl 