23 MPG combined makes the 2025 Lexus TX 350 AWD 2.4L 4-cyl a sensible choice for a premium three-row SUV, a vehicle designed to carry families and their gear in comfort and style without excessive stops at the pump. This isn’t a spartan economy car; it’s a substantial, all-wheel-drive luxury SUV tipping the scales at over 4,500 pounds, a machine built for long-haul practicality and refined daily duty. The powertrain, a 2.4-liter turbocharged four-cylinder paired with an 8-speed automatic transmission, is a clear signal from Lexus about prioritizing efficiency and accessible performance within a segment often dominated by thirstier V6s or even V8s. Buyers of the TX 350 AWD are those who need the space and versatility of a large SUV but are acutely aware of running costs and appreciate a smart engineering solution that avoids the fuel consumption penalties traditionally associated with such vehicles. They’re driving busy lives, often ferrying kids to school, hauling groceries, and embarking on weekend trips. They demand a vehicle that can do all this without demanding constant attention to the fuel gauge. The 23 MPG speaks directly to this pragmatic luxury buyer who values efficiency as much as Lexus’s renowned reliability and quiet cabin experience. For a Lexus fuel economy, it’s a strong showing in a highly competitive class.

City and highway performance

Looking at the TX 350 AWD’s EPA estimates, we find a city rating of 20 MPG and a highway rating of 26 MPG. This split is telling for the vehicle’s character. The 20 MPG in city driving is competitive, especially considering the TX’s size and the inherent stop-and-go penalties of urban environments. Lexus has clearly tuned the 8-speed automatic to work with the turbocharged four-cylinder to maximize efficiency during low-speed, high-demand scenarios, likely using early upshifts and minimizing torque converter slip. The transmission’s calibration to the 2.4L provides a responsive, albeit not overtly sporty, feel that perfectly suits the TX’s mission as a comfortable family hauler. On the highway, the 26 MPG figure shines. This is where the TX 350 AWD truly stretches its legs, benefiting from the steady-state cruising efficiency offered by a smaller-displacement turbocharged engine and the well-spaced gear ratios of its automatic transmission. For families undertaking road trips or commuters with a significant portion of their travel on open roads, this highway figure translates directly into fewer fuel stops and a more relaxed journey. It reinforces the idea that the TX is about hauling efficiently across varying driving conditions, aligning with the varied demands placed on large family SUVs.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,500 for the 2025 Lexus TX 350 AWD 2.4L 4-cyl. This figure is based on driving 15,000 miles per year, with a split of 45% highway driving and 55% city driving, and using national average fuel prices, which are periodically updated by the EPA. This $2,500 estimate provides a tangible benchmark for prospective buyers, directly addressing one of the primary concerns when considering a large luxury SUV, the ongoing cost of ownership. For a vehicle of the TX’s caliber, designed for extensive family use, this annual fuel expenditure is notably reasonable. It means that while the initial purchase price places it firmly in the luxury segment, the day-to-day running costs related to fuel are kept in check, preventing sticker shock at the pump from diminishing the ownership experience. This predictable and manageable fuel cost is a significant draw for the pragmatic Lexus buyer who appreciates long-term value alongside immediate comfort and features. For more specifics on TX MPG across all years, consult our detailed archives.

Real-world expectations

In real-world driving scenarios, owners of the 2025 Lexus TX 350 AWD 2.4L 4-cyl can expect its fuel economy to generally align with the EPA’s 23 MPG combined rating, provided driving habits are reasonable. Lexus vehicles are typically good at meeting their EPA figures, and the TX 350 AWD is no exception. However, factors like aggressive acceleration, heavy loads, frequent short trips in extreme weather, or extensive uphill driving will naturally push the numbers slightly lower. Conversely, drivers with a lighter foot, those who primarily navigate flat terrain, or spend more time cruising on highways might see figures even slightly better than advertised. The turbocharged four-cylinder’s efficiency is particularly sensitive to turbo boost, meaning sustained periods of high-demand acceleration will consume more fuel. The TX’s weight also plays a role; while well-managed, it’s still a large vehicle that requires energy to move, especially from a standstill. Drivers opting for dynamic drive modes that hold gears longer will also experience a minor dip in efficiency compared to comfort or eco settings. The TX 350 AWD’s drivetrain is optimized for its size and mission, and diligent drivers will largely confirm the EPA’s estimates.

How it compares

The 2025 Lexus TX 350 AWD 2.4L 4-cyl carves out an impressive niche when compared to its direct luxury three-row SUV rivals. Consider the Acura MDX SH-AWD, which employs a naturally aspirated 3.5L V6. It delivers 21 MPG combined (19 city/25 highway), placing the TX 350 with its 23 MPG combined at a clear advantage, particularly in city driving. Moving to European contenders, the Audi Q7 45 TFSI (2.0L turbo-four) offers 22 MPG combined (19 city/25 highway), making the TX a smidge more efficient overall. The Volvo XC90 Core B5 (2.0L turbo-four) achieves 25 MPG combined (22 city/28 highway), which is an efficiency leader in the segment due to its mild-hybrid assistance, but it feels less stout under heavy load than the TX’s more direct turbo setup. The TX’s mission as a spacious, family-focused three-row luxury SUV means its comparison points are often large, powerful, and historically thirsty vehicles. The buyers for the TX 350 AWD are often cross-shopping these very models, and the Lexus’s superior efficiency, particularly against the MDX and Q7, is a strong argument. It represents a contemporary approach to luxury SUV powertrain engineering, delivering ample power for everyday needs without compromising on intelligent fuel consumption, positioning it as a shrewd choice in its category.

Tips to maximize efficiency

Maintaining a smooth and consistent driving style is important. Avoid abrupt acceleration and hard braking, as the turbocharged 2.4L engine’s efficiency is significantly impacted by fluctuating demands for power, which require more fuel to spin up the turbo.

Use the TX 350 AWD’s Eco mode. This setting recalibrates throttle response and transmission shift points to prioritize fuel economy, making it ideal for daily commuting and less demanding drives.

Regularly check your tire pressure. Proper inflation reduces rolling resistance, directly translating into better fuel economy and also extending tire life, a simple yet often overlooked maintenance item.

Limit unnecessary weight. While the TX is designed for cargo, removing heavy or bulky items from the trunk or roof rack when not needed will reduce the amount of energy the engine needs to expend, slightly boosting MPG.

Plan your routes to avoid excessive idling and stop-and-go traffic whenever possible. The 2.4L engine, like any internal combustion engine, consumes fuel even when stationary, and minimizing idle time contributes to overall better efficiency.