In a message dated 98-08-14 11:42:37 EDT, ray.wei@US.PWCGLOBAL.COM writes:

<<
 A O2 sensors generally last only 30K to 60K?  Then why Vanagon(88+) and EV
 have maintenance interval of 90K?   BTW, I thought emission warranty used
 to be 5yr./50K.  Has the Federal law changed?
 Yi-Ruey Wei
 87 Vanagon GL Syncro w/78K miles
 85 Jetta GLI w/165K miles
 Dallas, TX >>

 A maintenance interval of 90K,,,,,,,,,, do you change your oil every 7500
miles? Every professional tech on VW and Audi will tell you to change it every
60K.   O2 sensors aren't covered under warranty after 2yr/24K.  They are
considered a wear and tear item, like a spark plug.  Emessions warranty is
8yr/80k for the CAT convertor and the engine ECU only.
 Michael Modl
 87 syncro
 87 quattro