At a glance, the Acura TSX uses a four-cylinder engine; there is no factory six-cylinder option in the TSX lineup. The model was built around a 2.4-liter inline-4 engine, with a sport-focused Type-S version that also relied on four cylinders. This article reviews the engine layout and what it means for performance, maintenance, and value.
Engine layout and options
The TSX lineup consistently used a four-cylinder engine throughout its production, and there was no factory V6 engine offered in the US market. Here are the key points that define the TSX's powerplant across generations:
- Four-cylinder configuration: all TSX models rely on inline-4 engines.
- Displacement: most models used a 2.4-liter i-VTEC engine from Honda's K-family.
- No V6 option: Acura did not offer a V6 engine in the TSX; larger V6 Acura models existed in other lines (TL, RL, MDX, etc.).
- Type-S variant: the sportier TSX Type-S also used the 2.4-liter four-cylinder with higher output, again without a V6.
- Model-year variation: horsepower and tuning changed slightly across generations, but the engine displacement remained a four-cylinder.
In short, all Acura TSX variants — base and Type-S — are four-cylinder cars, and there was no factory six-cylinder TSX produced.
Model year differences
Across its production run (2004–2014), the TSX saw updates to engine management and intake tuning that improved efficiency and output modestly while retaining the same fundamental 2.4-liter four-cylinder architecture. The focus remained on balanced performance and refined driving dynamics rather than a V6 powertrain.
Type-S specifics
The TSX Type-S, introduced to offer a sportier alternative, used a higher-output version of the same four-cylinder engine. While it delivered more performance than the base TSX, it did not switch to a V6.
What this means for buyers
For prospective buyers, the absence of a V6 in the TSX means decisions center on four-cylinder efficiency, torque delivery from the 2.4-liter engine, and chassis dynamics rather than large-displacement power.
Summary
The Acura TSX uses a four-cylinder engine throughout its production life, with no factory six-cylinder option. The Type-S variant increases performance within the same four-cylinder layout.