i got 17 the other week something is wrong!!
boost gauge i put in recently is reading slightly less vac @ idle than it used to (18inHg vs 20inHg before), but car is boosting and idling fine so i dunno if there's a leak somewhere.
i babied the sh*t out of it last week (NO boosting, rolling down hills in neutral, no driving in traffic) and still returned 14.5L/100km.
ideas anyone? im getting it looked at over the weekend, but it's still worrying me!