16 MPG combined isn’t going to win any awards, but it’s the price you pay for the 2019 Cadillac CTS-V 6.2L. This isn’t a car bought for practicality, it’s a four-door sledgehammer designed to demolish public roads and leave a lasting impression wherever it goes. CTS-V buyers are chasing raw power, exhilarating performance, and a uniquely American take on the sport sedan, and they’re willing to forgo hybrid-like fuel efficiency in the process.

City and highway performance

The CTS-V’s EPA ratings break down to 14 MPG in the city and 21 MPG on the highway. The city figure reflects stop-and-go driving, where the supercharged V8 constantly battles its own thirst for premium fuel. The highway number is more palatable, showing the engine can achieve somewhat reasonable efficiency when cruising at a steady speed. Still, even on the open road, the slightest tap of the accelerator unleashes a surge of power that quickly diminishes any attempts at maximizing fuel economy. The automatic transmission, though exceptionally quick and responsive, doesn’t have the tall overdrive gears of some competitors, further impacting highway MPG. You’ll find CTS V MPG across all years on our dedicated model page.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2019 Cadillac CTS-V at $3,600. This figure is based on driving 15,000 miles per year, with an assumed fuel price reflecting the national average for premium gasoline. Keep in mind that this is just an estimate, and your actual fuel costs may vary significantly depending on your driving habits, local fuel prices, and the proportion of city versus highway miles you drive. Many CTS-V owners exceed this figure due to spirited driving or greater-than-average annual mileage.

Real-world expectations

Forget the EPA numbers. Unless you’re exceptionally gentle with the throttle and strictly adhere to speed limits, achieving 16 MPG in mixed driving with the CTS-V is optimistic. Expect to see numbers closer to 12-14 MPG in everyday use, especially if you regularly tap into the car’s prodigious power. Highway driving can yield slightly better results, potentially reaching the high teens, but again, restraint is key. This car is simply too tempting to drive conservatively.

How it compares

Compared to its rivals, the CTS-V’s fuel economy sits squarely in the realm of “acceptable for its performance class.” The BMW M5 Competition, also packing a potent V8, achieves a slightly better 17 MPG combined. The Mercedes-AMG E63 S sedan, another direct competitor, posts a similar 16 MPG combined rating. Even the Audi RS7, with its slightly more efficient engine design, only manages 18 MPG combined. The Cadillac trades blows with the best of them, and buyers aren’t cross-shopping with a Toyota Prius, they’re accepting a fuel penalty for outrageous power. See all Cadillac fuel economy data on our make page.

Tips to maximize efficiency

The first and most obvious tip is to resist the urge to unleash the CTS-V’s full potential at every opportunity. Gentle acceleration and anticipating traffic flow can make a noticeable difference in fuel consumption. While the car begs to be driven hard, mindful driving will reward you with slightly less frequent trips to the gas station.

Be sure your tires are properly inflated. The CTS-V’s tires are a critical component of its performance and handling. Underinflated tires increase rolling resistance, leading to decreased fuel economy. Check your tire pressure regularly and maintain the recommended settings for optimal efficiency.

Avoid excessive idling. The CTS-V’s large displacement engine consumes a significant amount of fuel even when stationary. If you’re stopped for more than a minute or two, it’s generally more fuel-efficient to turn off the engine. Restarting the car consumes less fuel than idling for an extended period.

Use cruise control on the highway. Maintaining a consistent speed on the open road minimizes unnecessary acceleration and deceleration, which can improve fuel economy. The CTS-V’s adaptive cruise control system can further enhance efficiency by automatically adjusting your speed to maintain a safe following distance.

Keep up with scheduled maintenance. A well-maintained engine runs more efficiently. Regular oil changes, air filter replacements, and spark plug inspections can ensure your CTS-V is operating at peak performance and fuel economy.