There are 3 stored owner reports matching the fuel system leading-label group for the 2015 Mazda Mazda6 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 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)The contact owns a 2015 Mazda Mazda6. The contact stated that after refueling, the odor of fuel was present inside and outside the vehicle. The contact stated that there was fuel leaking underneath the rear driver's side of the vehicle. The contact stated that the failure occurred whenever there was more than 3/4 tank full of fuel in the fuel tank. The cause of the failure was not yet determined. The local dealer and manufacturer were not yet notified of the failure. The failure mileage was 90,000.
Fuel started leaking after 90,000 miles when tank is over 3/4 full.
I'VE OWNED THIS CAR FOR ABOUT 6 MONTHS. I USUALLY BUY GAS BY THE DOLLAR AMOUNT, BUT DID A COMPLETE COMPLETE FILL UP FOR THE FIRST TIME WITH THIS VEHICLE. AFTER DRIVING AWAY THEN PARKING AT HOME, I NOTICED A HEAVY GASOLINE SMELL AND CHECKED UNDERNEATH THE CAR. THERE WAS A CONSTANT DRIP (EVERY 15 SEC OR SO) COMING FROM UNDERNEATH, NEAR THE REAR DRIVER'S SIDE WHEEL. I NOW HAVE A PUDDLE. I'M AFRAID TO DRIVE IT. WHAT IF SOMEONE FLICKS A CIGARETTE AND IT CATCHES FIRE WHILE PARKED?! MY MECHANIC SAYS THAT THIS IS NOT NORMAL AFTER A COMPLETE FULL UP, AND SHOULD NEVER HAPPEN.
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.