2018 Kia K900
20MPG
Combined
2
Trims
Updated February 27, 2026
The 2018 Kia K900 Full-Size Sedan provides 18–20 combined MPG depending on trim. We’ve compiled EPA fuel economy data, NHTSA safety ratings, and recall history so you can make an informed decision.
2018 Kia K900 Specifications
| Spec | Value |
|---|---|
| Combined MPG | 18–20 combined MPG depending on trim |
| City MPG | 17 |
| Highway MPG | 25 |
| Body Style | Full-Size Sedan |
| Fuel Type | Premium |
| Drive | RWD |
| Available Trims | 2 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| 8 cyl | 15/23/18 | 5.0L 8cyl | Automatic (S8) |
| 6 cyl | 17/25/20 | 3.8L 6cyl | Automatic (S8) |
Annual Fuel Cost
Based on EPA estimates, the 2018 Kia K900 costs approximately $2,725 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
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