There are 1 stored owner reports matching the powertrain & transmission leading-label group for the 2015 Porsche 911 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)I FIND MYSELF HAVING TO HAVING TO ADD OIL EVERY TWO FILL UPS. FROM 500 HUNDRED TO 1000 MILES.THIS RATE OF OIL CONSUMPTION VERY EXCESSIVE AND IF I WOULD HAVE BEEN ADVISED AT THE TIME OF PURCHASE I WOULD HAVE NOT BOUGHT THE CAR. THE DEALER AND PORSCHE USA SAYS THIS IS NORMAL. BUT I HAVE ANOTHER PORSCHE THAT DOESN'T USE OIL. THEY HAVE TO ADD OIL THREE TIMES SINCE I BOUGHT THE CAR.UNACCEPTABLE!.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.