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What 8 owners told NHTSA about the 2015 Porsche 911 Targa 4s Heritage Edition

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (8)Crash / fire / injury (1)Electrical system (4)Engine (3)Body & structure (1)Brakes (1)Speed control (1)Transmission & drivetrain (1)Visibility & wipers (1)

1 of 8 complaints match · Transmission & drivetrain · clear filters

Oct 3, 2017Transmission & drivetrain

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!.

NHTSA ODI 11031571

Working with the data? Download all 8 complaints as CSV · fetched from NHTSA July 27, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2015 Porsche 911 Targa 4s Heritage Edition verdict →