In the 2008 Altima lineup, transmission type depends on the engine: the 2.5-liter four-cylinder models use Nissan's Xtronic CVT, while the 3.5-liter V6 models use a traditional five-speed automatic. So it’s not one universal transmission for all 2008 Altimas; it varies by engine and trim.
Transmission options by engine
This section explains which transmissions were paired with the engines available in the 2008 Altima.
Before listing the transmission pairings, note that the Altima's drivetrain options varied by trim and market, but the following captures the common configurations for the 2008 model year in most U.S. specifications.
- 2.5-liter four-cylinder engine: Xtronic Continuously Variable Transmission (CVT).
- 3.5-liter V6 engine: traditional five-speed automatic transmission.
Overall, Altima buyers could expect a CVT with the four-cylinder models and a conventional automatic with the V6, which influences driving feel and maintenance considerations.
What this means for driving and maintenance
CVTs offer smooth power delivery and often better fuel economy, but they behave differently from traditional automatics and can have different maintenance considerations. The V6’s five-speed automatic provides a more traditional shifting feel and can be preferable for those seeking familiar performance characteristics on a larger engine.
- Fuel economy and smoothness: the CVT typically yields better highway mpg and seamless acceleration.
- Performance feel: some drivers notice a different throttle response with a CVT versus a stepped automatic.
- Maintenance considerations: CVTs require specific service intervals and fluids; older CVTs have had higher repair costs if problems arise.
- Longevity and reliability: both transmissions were generally reliable when properly maintained, with outcomes varying by upkeep and driving style.
In practice, your Altima’s transmission is determined by the engine: four-cylinder models use the CVT, while V6 models use a traditional automatic. Identifying your exact configuration can be done via the window sticker, VIN, or the owner's manual.
Summary
For the 2008 Nissan Altima, there isn’t a single answer to “CVT or automatic?” — it depends on the engine. The 2.5L four-cylinder version uses the Xtronic CVT, while the 3.5L V6 uses a conventional five-speed automatic. When evaluating or maintaining an ’08 Altima, verify the transmission based on the trim and engine, and plan accordingly for the specific maintenance needs.