Maruti XL6 CNG

CNG mileage and running cost

The Maruti Suzuki XL6 CNG returns a claimed ARAI mileage of 26.32 km/kg, which is among the highest figures in the six-seat MPV segment. At a typical CNG pump price of around ₹90–95 per kg in major Indian cities, this translates to a running cost of roughly ₹3.4–3.6 per km — compared to approximately ₹7–8 per km for the petrol variant at current fuel prices.

The CNG premium over the petrol Zeta MT is approximately ₹96,000 (ex-showroom). For a family covering 1,500 km per month, the fuel savings on CNG can be in the range of ₹4,000–5,000 per month, meaning the price premium is typically recovered within 18–24 months. This makes the XL6 CNG a compelling long-term ownership proposition for buyers in cities with a well-developed CNG infrastructure such as Delhi-NCR, Mumbai, Ahmedabad, and Pune.

The CNG tank capacity is 60 litres (water equivalent), with a secondary petrol tank of 45 litres for backup. This dual-fuel setup means range anxiety is minimal — the car can seamlessly switch to petrol if CNG runs out.

CNG kit, tank, and boot space

The XL6 CNG uses Maruti's factory-fitted S-CNG system — the kit is installed on the production line, not at the dealership. This is a critical distinction: factory fitment means the full manufacturer warranty (3 years / 1,00,000 km as reported by Autocar India) remains intact, and the CNG system is integrated with the engine's electronic controls from the ground up.

The CNG cylinder is mounted under the boot floor, which means the XL6 CNG retains 209 litres of boot space with all three rows in use — the same figure quoted for the petrol variant with all seats up. However, buyers should note that the cylinder does occupy the underfloor space, and the boot floor sits slightly higher than in the petrol version, which can affect loading of tall items.

The 60-litre CNG tank (water equivalent) gives a theoretical CNG-only range of approximately 580–620 km at claimed efficiency, and the 45-litre petrol reserve adds further peace of mind for long highway runs where CNG stations may be sparse.

Performance on CNG

On CNG, the K 15 C engine produces 86.63 bhp at 5500 rpm and 121.5 Nm of torque at 4200 rpm — a reduction from the petrol's 101.64 bhp and 136.8 Nm. This is a typical trade-off with factory CNG systems, and in real-world urban driving the difference is noticeable primarily during hard acceleration or steep inclines with a full load of six passengers.

The 5-speed manual gearbox is the only transmission offered with the CNG variant — there is no automatic option. The gearbox is well-suited to city driving, with ratios that keep the engine in its torque band during stop-and-go traffic. Highway cruising at 80–100 km/h is relaxed, though overtaking at speed requires a downshift.

The top speed on CNG is rated at 159 km/h, versus 170 km/h for the petrol. For the target buyer — a family using the XL6 primarily within city limits and on known highway routes — the performance deficit is unlikely to be a daily concern.

Cabin, space, and tech

The XL6's defining interior feature is its six-seat layout with second-row captain seats, each offering individual armrests and recline/slide adjustments. This gives the cabin a more premium, business-class feel compared to the seven-seat Ertiga. The third row is a 50:50 split bench that folds flat to expand boot space to 692 litres (petrol figure; CNG figure not independently confirmed).

The Zeta CNG trim comes equipped with a 17.78 cm SmartPlay Pro touchscreen with wired Android Auto and Apple CarPlay, a voice assistant, and USB connectivity. The 17.78 cm coloured Digital MID displays real-time driving statistics, range, and TPMS alerts. Suzuki Connect — with 40+ connected features including remote operations, Alexa compatibility, smartwatch connectivity, vehicle tracking, and a free 3-year subscription — is standard.

Automatic climate control with rear AC vents, cruise control, and a 360-degree view camera with approaching object detection and steering-based gridlines round out the tech package. The all-black leatherette interior gives the cabin a cohesive, upmarket look that is unusual at this price point.

Safety and ADAS

The XL6 CNG comes with 6 airbags as standard — a segment-leading figure at its price. The HEARTECT platform is engineered to absorb and evenly disperse impact forces, and the car is equipped with Electronic Stability Control (ESP), Hill Hold Assist, ABS, and a Tyre Pressure Monitoring System (TPMS).

The 360-degree view camera with multiple view modes, approaching object detection, and steering-based gridlines is a notable safety addition for urban manoeuvring. The XL6 has not been rated by Bharat NCAP or Euro NCAP at the time of writing, so buyers should weigh the on-paper safety equipment against the absence of a crash-test rating.

For a CNG vehicle, the factory-fitted nature of the S-CNG system also contributes to safety — the cylinder, valves, and electronic controls meet OEM standards, unlike aftermarket kits which can vary in quality.

CNG variants and pricing

The XL6 CNG is offered in a single variant: the Zeta CNG, priced at ₹12.53 lakh (ex-showroom). This is the only CNG option in the XL6 lineup; the Alpha and Alpha+ trims are petrol-only. The CNG variant is exclusively paired with a 5-speed manual gearbox — there is no CNG automatic option.

For context, the petrol Zeta MT is priced at ₹11.57 lakh, making the CNG premium approximately ₹96,000. The full XL6 petrol range extends up to ₹14.53 lakh for the Alpha+ AT Dual Tone. Buyers seeking more features — ventilated seats, paddle shifters, or a dual-tone exterior — must move to the petrol variants.

On-road prices vary by city and state due to differing road tax and registration charges. Maruti periodically offers exchange and loyalty bonuses; as of May 2026, offers of up to ₹45,000 were available on the XL6.

How it compares

The XL6 CNG's closest rival is the Kia Carens CNG, which offers a larger cabin, more variant choices, and a diesel option, but is priced higher and does not match the XL6's claimed CNG efficiency. The Maruti Ertiga (not listed as a CNG competitor on this platform) is the XL6's own sibling — it offers seven seats and a lower price but lacks the captain-seat layout and Nexa premium positioning.

Against the Renault Triber CNG, the XL6 wins on space, features, and safety equipment, though the Triber is significantly cheaper. The Toyota Rumion CNG is mechanically related to the Ertiga and competes in a similar space, but the XL6's Nexa exclusivity and captain seats give it a differentiated appeal.

The XL6 CNG's 26.32 km/kg claimed efficiency is competitive within the MPV segment, and its factory-fitted S-CNG system with full warranty coverage is a meaningful advantage over any dealer-fitted alternatives.

Who should buy it

The XL6 CNG is best suited to families of four to six who want a spacious, premium-feeling MPV with very low running costs and the peace of mind of a factory CNG system. It is ideal for buyers in Delhi-NCR, Mumbai, Gujarat, and other states with dense CNG networks who cover 1,200 km or more per month.

Buyers who need an automatic gearbox, more than six seats, or the top-spec Alpha+ features should look at the petrol variants or consider the Kia Carens. Those who prioritise running cost above all else and are comfortable with a manual gearbox will find the XL6 CNG hard to beat in its segment.