20 MPG combined won’t win any fuel efficiency awards, especially in 2016. But the Kia K900 3.8L V6 wasn’t designed to chase hypermiling records. It’s a plush, comfortable, and quietly powerful luxury sedan intended for buyers who prioritize a smooth ride and a well-appointed cabin over outright efficiency. Its fuel consumption is simply a cost of entry for a luxurious experience at a price point significantly below established European rivals.

City and highway performance

The EPA estimates for the 2016 K900 with the 3.8L V6 break down to 17 MPG in the city and 25 MPG on the highway. The city figure reflects the reality of stop-and-go traffic, where the K900’s nearly 4,300-pound curb weight affects efficiency. The V6 engine, while adequately powerful, needs to work harder to accelerate the heavy sedan from a standstill. On the open road, however, the eight-speed automatic transmission helps keep the engine in its sweet spot, resulting in a more respectable 25 MPG. This figure is achievable on long cruises, but expect it to drop if you frequently engage in aggressive passing maneuvers or drive at higher speeds.

Annual fuel cost

The EPA calculates that the annual fuel cost for the 2016 Kia K900 3.8L V6 is $2,200. This figure is based on driving 15,000 miles per year, with a mix of city and highway driving, and using the national average fuel price for regular unleaded gasoline. It’s crucial to remember this is an estimate; your actual fuel costs will vary depending on your driving habits, local fuel prices, and the specific conditions in which you drive. Someone who primarily drives in congested urban areas will likely exceed this estimate, while someone who mainly drives on the highway may find their fuel costs are lower. Before buying, explore K900 MPG across all years.

Real-world expectations

While the EPA estimates provide a baseline, real-world MPG for the 2016 K900 3.8L V6 will likely fluctuate. Drivers who frequently use the car’s Sport mode, which holds gears longer and increases throttle response, will see a dip in fuel economy. Conversely, those who use the Eco mode, which softens throttle response and optimizes transmission shifts for efficiency, might see a modest improvement. Consistent maintenance, such as keeping tires properly inflated and ensuring the engine is properly tuned, also plays a role in achieving optimal fuel economy.

How it compares

The 20 MPG combined rating of the 2016 K900 3.8L V6 places it behind some of its competitors. For example, a 2016 Lexus LS 460, while offering similar levels of luxury, achieves a slightly better EPA combined rating of 20 MPG, matching the K900 but potentially offering better real world results.

The Genesis G80, particularly with the optional V8, delivers similar fuel economy numbers but can be a more engaging driving experience. The K900 buyer, however, is often drawn to its unique value: a flagship-level luxury experience at a price point that significantly undercuts the German establishment. Fuel economy might be a consideration, but it rarely is the *primary* deciding factor for this buyer.

Tips to maximize efficiency

The 2016 Kia K900, with its smooth V6 and eight-speed automatic, responds well to a gentle driving style. Avoid abrupt acceleration and braking, as these actions consume more fuel. Anticipate traffic flow and maintain a steady speed whenever possible to minimize wasted energy.

Ensure your tires are properly inflated to the recommended pressure, which can be found on a sticker inside the driver’s side doorjamb. Underinflated tires increase rolling resistance, which negatively impacts fuel economy. Check your tire pressure regularly, especially during significant temperature changes.

Minimize the use of accessories that place a heavy load on the engine. Air conditioning, in particular, can significantly reduce fuel economy, especially in city driving. Use it carefully and consider opening the windows or using the ventilation system when appropriate.

Consider using the K900’s Eco mode in situations where performance isn’t a priority. This mode optimizes engine and transmission settings for maximum fuel efficiency. Learn more about all Kia fuel economy data.