2019 Subaru Crosstrek Transmission & Axle Gear Ratios

Transmission gear ratios

The 2019 Subaru Crosstrek was offered with two transmission options: a 6-speed manual and a Lineartronic CVT (Continuously Variable Transmission).

6-Speed Manual Transmission

Lineartronic CVT (Continuously Variable Transmission)

Available axle ratios

The axle ratio in the Subaru Crosstrek is integrated into the transmission and front differential assembly, and due to Subaru's symmetrical all-wheel drive, the front and rear differentials share the same final drive ratio. The specific axle ratio depends on the transmission type.

How to identify your axle ratio

Unlike vehicles with separate, serviceable rear differentials that often have RPO codes on a door jamb sticker or an axle tag, the Subaru Crosstrek's final drive ratio is determined by its transmission type and is integrated into the transaxle unit. To identify your axle ratio, simply determine which transmission your 2019 Crosstrek is equipped with: the 6-speed manual or the Lineartronic CVT. This information can usually be found on your vehicle's window sticker, owner's manual, or by running a VIN decoder.

Towing vs MPG impact

The axle ratio plays a significant role in how your vehicle performs, influencing both towing capability and fuel economy. A numerically higher axle ratio (like the 4.444 in the manual transmission Crosstrek) means the engine will rev higher at a given road speed. This provides more torque multiplication to the wheels, improving acceleration and making the vehicle feel more responsive, especially beneficial for accelerating from a stop and managing inclines. For towing, a higher ratio is generally preferred as it aids in getting the load moving and reduces strain on the engine and transmission.

Conversely, a numerically lower axle ratio (such as the 3.700 in the CVT-equipped Crosstrek) results in lower engine RPMs at a given speed. This reduces fuel consumption, making it more efficient for highway driving and boosting overall fuel economy. However, it means less torque multiplication, which can make the vehicle feel less peppy and reduce its effective towing capacity.

The 2019 Subaru Crosstrek's ratios are well-matched to its intended use. The manual transmission with its 4.444 ratio offers a more engaging driving experience with a slight edge in off-the-line grunt, while the CVT's 3.700 ratio, combined with its ability to continuously vary gear ratios, prioritizes smooth power delivery and excellent fuel efficiency.

Common issues

Subaru drivetrains, including those in the 2019 Crosstrek, are generally known for their reliability. However, like any mechanical system, they can experience issues over time.

For vehicles with manual transmissions, common issues can include clutch wear, especially if subjected to frequent stop-and-go driving or heavy loads. Synchronizer wear can also lead to difficulty shifting gears.

CVT transmissions, while generally durable, can sometimes exhibit signs of wear such as shuddering, slipping, or unusual noises. Proper fluid maintenance is crucial for the longevity of a CVT. Subaru recommends specific service intervals for CVT fluid inspection and replacement.

Regarding the differentials (front and rear, which share the same fluid with the transmission in the manual, and are separate with the CVT), issues like bearing wear can lead to whining or howling noises, particularly at certain speeds. Since Subaru's all-wheel-drive system ensures both front and rear differentials are always engaged, maintaining proper fluid levels and quality is vital to prevent premature wear. However, these issues are not uniquely prevalent in the 2019 Crosstrek compared to other vehicles.

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