2016 Kia Optima fuel/propulsion system problems
53 owner complaints filed with NHTSA name the fuel/propulsion system on the 2016 Kia Optima — 7% of all complaints for this model year.
What owners report
“My 2016 Kia Optima equipped with the 2.4L DOHC I4 GDI engine began to experience progressive and severe oil consumption during the latter part of my ownership. The oil warning light began activating repeatedly, even after shortly getting the oil changed. Several certified mechanics and oil change…”
filed Jun 16, 2026
“The car returned P1326 and had multiple misfires and audible knocking, the dealers will indeed fight the already existing class action warranties. Was sent home and told to “drive the fuck out of it”, to which the car did not make it home and blew gasoline into my cabin while driving on the…”
filed Jun 8, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other Optima years
| Year | Reports | Share |
|---|---|---|
| 2020 Optima | 9 | 7% |
| 2019 Optima | 15 | 7% |
| 2018 Optima | 13 | 6% |
| 2017 Optima | 20 | 8% |
| 2015 Optima | 44 | 4% |
| 2014 Optima | 41 | 7% |
| 2013 Optima | 91 | 7% |
| 2012 Optima | 42 | 5% |
| 2011 Optima | 21 | 4% |
| 2010 Optima | 1 | 1% |
| 2009 Optima | 1 | 1% |
| 2008 Optima | 3 | 2% |
Other reported problem areas on the 2016 Kia Optima
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.