Quote:
|
Originally Posted by Lil bastard
YES - generally that's a good recommendation. But, this assumes ideal conditions which rarely applies to anyone.
Short Trips, infrequent trips, Stop & Go, dusty conditions (incl. frequent expressway driving), hot climate, spirited driving, long idling periods, aftermarket intake and/or filter, will all put you outside this ideal zone and the change interval needs to be adjusted accordingly. Most owners manuals will state this.
At least once annually or every 7500-10k mi. (whichever comes 1st) is probably the best all-around recommendation.
|
I haven't looked at my manual lately, but isn't there a severe conditions schedule? These conditions would fall under that schedule. If there isn't one, I would assume the schedule in the manual applies to all conditions. Porsche tests it's vehicles for durability, it seems that these schedules are based on the results of these tests.