
The Yaris L is equipped with a 1.5L naturally aspirated engine, which delivers a maximum power of 81 kW and a maximum torque of 138 Nm. In terms of the transmission system, the engine is paired with either a 5-speed manual transmission or a CVT continuously variable transmission. The powertrain system in the Yaris L performs quite well overall, with relatively responsive throttle feedback during initial acceleration. During driving, the engine's power output is smooth; however, during mid-to-high speed acceleration, the car may feel slightly underpowered, requiring some extra distance when overtaking. The engine in the Yaris L is not imported but utilizes Japanese automotive production technology, making it capable of meeting daily driving needs.

Friends who have driven the Yaris L should know that this car is basically equipped with Toyota's NR series small-displacement engines. According to my research, there are mainly two naturally aspirated engines: 1.3L and 1.5L, with model numbers 6NR-FE and 7NR-FE respectively. For example, my colleague's car is the 1.5L version, which is quite sufficient for city driving. This series of engines focuses on fuel efficiency and durability, featuring dual VVT-i technology, and doesn't feel sluggish even when climbing hills with the AC on. A friend who owns a repair shop mentioned that these engines have a low failure rate, and semi-synthetic oil is sufficient for regular maintenance. However, when driving on the highway, the engine noise becomes noticeably louder once the RPM exceeds 3,500.

The engine in the Yaris L is Toyota's legendary durable workhorse, available in two displacements: 1.3L and 1.5L, with specific model codes 6NR and 7NR. We bought the 1.5L version last year, and the most noticeable feature is its impressive fuel efficiency—around 5L per 100km in city commuting without AC. However, you'll need to press the accelerator harder when climbing hills with a full load and AC on. Mechanics praise the improved valve cover gasket design, which significantly reduces oil leaks compared to older models, but they recommend regular throttle body cleaning to prevent idle shaking. The slightly noisy cold start is negligible; the key point is its reliability over five years with minimal maintenance.

From a mechanical perspective, the 1.5L 7NR engine used in the Vios is part of Toyota's NR platform. Its all-aluminum cylinder block achieves good weight reduction, and the dual VVT system delivers quick torque response at low speeds. During my test drive, I specifically noticed the throttle tuning at initial acceleration - it feels quite nimble at take-off but becomes relatively gentle during mid-range acceleration. A technical highlight is the switch to an electronically controlled water pump, which heats up one-third faster than traditional belt-driven systems. However, the repair manual indicates that the spark plugs in this generation are positioned deeper, making DIY replacement more challenging compared to older models.


