The 2015 Cadillac SRX is powered by a single gasoline engine option: a 3.6-liter V6 from GM’s LFX family, paired with a six-speed automatic transmission. It delivers roughly 304–308 horsepower and about 260–265 lb-ft of torque, with all-wheel drive available as an option.
Engine specifications at a glance
The following core specifications explain the SRX’s propulsion and how it behaves on the road.
- Displacement: 3.6 liters
- Configuration: V6, DOHC, 24 valves
- Induction and fuel system: Naturally aspirated with direct injection and variable valve timing
- Power output: approximately 304–308 horsepower
- Torque: approximately 260–265 lb-ft
- Transmission: 6-speed automatic
- Drivetrain: Front-wheel drive (standard) with all-wheel drive available
These specifications define the SRX’s everyday performance, refinement, and efficiency characteristics.
Performance and fuel efficiency details
With the 3.6-liter V6 under the hood, the SRX aims for strong highway cruising and capable acceleration. Expect around 0–60 mph in the high 7-second range, depending on drivetrain and tire choice. Fuel economy varies by configuration: roughly 17 miles per gallon in the city and 24 miles per gallon on the highway for front-drive models, with AWD typically delivering about 16 mpg city and 23 mpg highway.
Design notes and reliability considerations
The SRX’s 3.6-liter V6 (LFX family) is a widely used GM engine known for smooth power delivery and generally solid reliability. As with many direct-injection engines, routine maintenance—such as timely oil changes and fuel-system care—helps sustain performance and efficiency over time. If you’re buying used, verify maintenance history and inspect for any model-year specific advisories from GM or consumer guides.
Summary
For 2015, the Cadillac SRX’s engine lineup centers on a single, modern 3.6-liter V6 (LFX) delivering about 304–308 hp and 260–265 lb-ft of torque, paired with a six-speed automatic and optional all-wheel drive. This setup provides a balance of strong on-road performance, comfortable highway cruising, and reasonable efficiency for a mid-size luxury SUV.