The 2012 Altima offered two engine choices: a 2.5-liter four-cylinder and a 3.5-liter V6. The four-cylinder was the common baseline choice, while the V6 was available on higher trims for extra power and acceleration.
Two engine options
The Altima’s 2012 lineup was built around a small, efficient four-cylinder and a larger, more powerful V6. Here are the core configurations buyers could choose from.
- 2.5-liter inline-4 (QR25DE) — displacement: 2.5 L; horsepower: about 179 hp; torque: around 172–180 lb-ft. This engine is the efficiency-focused option for most trims.
- 3.5-liter V6 (VQ35DE) — displacement: 3.5 L; horsepower: about 270 hp; torque: around 258 lb-ft. This engine provides a stronger, quicker response for higher trims.
Both engines were designed for reliability and smooth operation, with the four-cylinder leaning toward fuel economy and the V6 delivering noticeably more punch when needed.
Transmission pairing
Transmission choices matched the engine options, shaping how power was delivered to the wheels. Here’s how the 2012 Altima paired engines with transmissions.
- 2.5L QR25DE — commonly paired with Nissan’s continuously variable transmission (CVT) for smooth acceleration and efficiency.
- 3.5L VQ35DE — typically paired with a traditional 5-speed automatic transmission, offering a more familiar gear-shifting feel for performance-oriented trims.
Note: Some trims or regional markets could differ in their specific transmission configurations; checking the exact vehicle’s documentation or VIN can confirm the precise setup for a given car.
Performance and fuel economy notes
The 2.5-liter engine prioritized efficiency and refined everyday driving, while the 3.5-liter V6 delivered stronger acceleration and confident highway performance. Official fuel-economy figures vary by drivetrain and equipment, so trim-level specifics are the best source for exact estimates.
Summary
In conclusion, the 2012 Nissan Altima offered two engine options: a 2.5-liter inline-4 (QR25DE) and a 3.5-liter V6 (VQ35DE). The four-cylinder version typically came with a CVT, prioritizing efficiency, while the V6 version used a 5-speed automatic for added performance. This setup gave buyers a clear choice between fuel-saving practicality and stronger, sportier acceleration.