On these small injected motors, how long is the average plug life?  Mine
is not a WBX but it had Digifant and it's pushing a van and it's
a teenie-weenie 1.8 liters of VW power.

Every year?  Every 20k miles?  Anybody want to recommend an interval?  When
I got the van about 30k miles ago, the plugs were  quite 'eroded'...the gap
was up at about .040 or .050 but it was still running and starting
'normally' and I didn't really notice any gross improvement when I stuck in
some new plugs..  Just doing my spring maintenance, Oil, all filters, change
tranny oil, spray lube all the suspension, alignment check, wipers, etc
etc.  Plugs and cap, too?

  Don Hanson