Fuel tank: 35 of 35 variants rated.
Kia Optima 1.6 T-GDi DynamicPlusLine tops the Kia Optima ranking by Fuel tank, at 70 L (18.5 gal US).
Across 35 ranked variants, Fuel tank spans from 55 L (14.5 gal US) to 70 L (18.5 gal US).
| # | Variant | Year | Body | Fuel | Fuel tank |
|---|---|---|---|---|---|
| 1 | Kia Optima 1.6 T-GDi DynamicPlusLine | 2018 | Sedan | Petrol | 70 L (18.5 gal US) |
| 2 | Kia Optima 1.6 T-GDi GT-Line | 2018 | Sedan | Petrol | 70 L (18.5 gal US) |
| 3 | Kia Optima 1.6 CRDi DynamicPlusLine | 2018 | Sedan | Diesel | 70 L (18.5 gal US) |
| 4 | Kia Optima 1.6 CRDi GT-Line | 2018 | Sedan | Diesel | 70 L (18.5 gal US) |
| 5 | Kia Optima SW 1.6 T-GDi DynamicPlusLine | 2018 | Wagon | Petrol | 70 L (18.5 gal US) |
| 6 | Kia Optima SW 1.6 T-GDi GT-Line | 2018 | Wagon | Petrol | 70 L (18.5 gal US) |
| 7 | Kia Optima SW 1.6 CRDi DynamicPlusLine | 2018 | Wagon | Diesel | 70 L (18.5 gal US) |
| 8 | Kia Optima SW 1.6 CRDi GT-Line | 2018 | Wagon | Diesel | 70 L (18.5 gal US) |
| 9 | Kia Optima SW 2.0 T-GDi GT | 2016 | Wagon | Petrol | 70 L (18.5 gal US) |
| 10 | Kia Optima SW 1.7 CRDi ComfortPlusLine+1 | 2016 | Wagon | Diesel | 70 L (18.5 gal US) |
| 11 | Kia Optima SW 1.7 CRDi DynamicLine+1 | 2016 | Wagon | Diesel | 70 L (18.5 gal US) |
| 12 | Kia Optima SW 1.7 CRDi ExecutiveLine+1 | 2016 | Wagon | Diesel | 70 L (18.5 gal US) |
| 13 | Kia Optima SW 1.7 CRDi GT-Line+1 | 2016 | Wagon | Diesel | 70 L (18.5 gal US) |
| 14 | Kia Optima 2.0 T-GDi GT | 2016 | Sedan | Petrol | 70 L (18.5 gal US) |
| 15 | Kia Optima 1.7 CRDi ComfortPlusLine | 2016 | Sedan | Diesel | 70 L (18.5 gal US) |
| 16 | Kia Optima 1.7 CRDi ExecutiveLine+1 | 2016 | Sedan | Diesel | 70 L (18.5 gal US) |
| 17 | Kia Optima 1.7 CRDi GT-Line+1 | 2016 | Sedan | Diesel | 70 L (18.5 gal US) |
| 18 | Kia Optima 1.7 CRDi ComfortPlusLine | 2015 | Sedan | Diesel | 70 L (18.5 gal US) |
| 19 | Kia Optima 1.7 CRDi DynamicLine+1 | 2015 | Sedan | Diesel | 70 L (18.5 gal US) |
| 20 | Kia Optima 1.7 CRDi First Edition+1 | 2015 | Sedan | Diesel | 70 L (18.5 gal US) |
| 21 | Kia Optima 1.7 CRDi ExecutiveLine+1 | 2014 | Sedan | Diesel | 70 L (18.5 gal US) |
| 22 | Kia Optima 1.7 CRDi Super Pack+1 | 2012 | Sedan | Diesel | 70 L (18.5 gal US) |
| 23 | Kia Optima 2.0 CVVT Hybrid DynamicLine | 2015 | Sedan | Petrol | 65 L (17.2 gal US) |
| 24 | Kia Optima 2.0 CVVT Hybrid BusinessLine | 2014 | Sedan | Petrol | 65 L (17.2 gal US) |
| 25 | Kia Optima 2.0 CVVT Hybrid ExecutiveLine | 2014 | Sedan | Petrol | 65 L (17.2 gal US) |
| 26 | Kia Optima 2.0 CVVT Hybrid Plus Pack | 2013 | Sedan | Petrol | 65 L (17.2 gal US) |
| 27 | Kia Optima 2.0 CVVT Hybrid Super Pack | 2013 | Sedan | Petrol | 65 L (17.2 gal US) |
| 28 | Kia Optima 2.0 CVVT Hybrid Plus Pack | 2012 | Sedan | Petrol | 65 L (17.2 gal US) |
| 29 | Kia Optima 2.0 CVVT Hybrid Super Pack | 2012 | Sedan | Petrol | 65 L (17.2 gal US) |
| 30 | Kia Optima SW 2.0 GDi PHEV DynamicPlusLine | 2019 | Wagon | Elektro/Benzine | 55 L (14.5 gal US) |
| 31 | Kia Optima SW 2.0 GDi PHEV ExecutiveLine | 2019 | Wagon | Elektro/Benzine | 55 L (14.5 gal US) |
| 32 | Kia Optima SW 2.0 GDi PHEV Business DynamicLine | 2018 | Wagon | Elektro/Benzine | 55 L (14.5 gal US) |
| 33 | Kia Optima SW 2.0 GDi PHEV Business ExecutiveLine | 2018 | Wagon | Elektro/Benzine | 55 L (14.5 gal US) |
| 34 | Kia Optima 2.0 GDi PHEV Business DynamicLine | 2016 | Sedan | Elektro/Benzine | 55 L (14.5 gal US) |
| 35 | Kia Optima 2.0 GDi PHEV Business ExecutiveLine | 2016 | Sedan | Elektro/Benzine | 55 L (14.5 gal US) |