Maruti Suzuki has moved a step closer to green mobility with the testing of its WagonR Flex Fuel model. This alternative fuel variant is a response to the Indian government’s push towards ethanol-blended fuel adoption. The WagonR Flex Fuel car was recently spotted undergoing real-world road tests, signaling Maruti’s intent to prepare its lineup for a more sustainable future.
This isn’t just a minor tweak. The Flex Fuel version of the WagonR can run on a mix of petrol and ethanol, typically between 20% to 85% ethanol content (E20 to E85). As India aims to adopt E20 fuel by 2025, the WagonR Flex Fuel could be among the first mass-market cars tailored for this shift.
How the Flex Fuel Engine Works in the WagonR
The core of the Maruti WagonR Flex Fuel model lies in its modified 1.2L K-Series engine, tuned specifically to handle ethanol-blended fuels without sacrificing reliability. Flex fuel engines require upgraded fuel systems, corrosion-resistant components, and advanced ECU programming to accommodate varying ethanol percentages.
Maruti engineers have ensured that these adaptations do not compromise the driving experience. In fact, initial test data suggest that power output remains comparable to the standard petrol model, while tailpipe emissions are notably reduced, especially CO2.
Expected Mileage from the Maruti WagonR Flex Fuel
One of the biggest questions for Indian buyers is: how does alternative fuel affect mileage? Based on the latest internal tests, the Maruti WagonR Flex Fuel offers an average of 24 to 26 km/l (kilometers per liter) on E20 ethanol blend. However, on higher ethanol content (E85), the fuel efficiency can drop to around 18 to 20 km/l due to ethanol’s lower energy density compared to petrol.
Despite this, the use of ethanol makes the cost per kilometer comparable or even cheaper in some cases, depending on local ethanol prices.
Price and Launch Timeline in India
Maruti has not officially announced the price of the WagonR Flex Fuel yet, but industry insiders estimate a marginal increase of ₹20,000 to ₹25,000 over the standard petrol variant. This additional cost will cover engine upgrades and fuel system enhancements.
The company has confirmed that it is targeting a launch window in early 2026, aligning with India’s national E20 fuel rollout. Expect the model to be available in multiple trims, mirroring the current petrol lineup.
Comparison Table: WagonR Flex Fuel vs Standard WagonR
| Feature | WagonR Flex Fuel | Standard WagonR (Petrol) |
|---|---|---|
| Fuel Type | E20 to E85 Ethanol Blend | Petrol |
| Engine | 1.2L K-Series (Flex Tuned) | 1.2L K-Series |
| Mileage (Approx) | 18-26 km/l | 23-25 km/l |
| CO2 Emissions | Lower | Higher |
| Expected Launch | Early 2026 | Already Available |
| Price (Estimated) | ₹6.5 to ₹7.8 Lakh | ₹6.2 to ₹7.5 Lakh |
Why the WagonR Flex Fuel Matters for India
This move by Maruti is more than just a new variant; it symbolizes a shift in India’s automotive strategy. Ethanol is an alternative fuel sourced largely from sugarcane and biomass, reducing oil import dependency and boosting the rural economy. With India aiming to reduce vehicular carbon emissions, such flex fuel cars are a step in the right direction.
By offering a familiar, practical model like the WagonR in a flex fuel version, Maruti is making green mobility more accessible to the average Indian household.
FAQs About Maruti WagonR Flex Fuel
What is the mileage of the Maruti WagonR Flex Fuel?
The WagonR Flex Fuel delivers 24-26 km/l on E20 blend and around 18-20 km/l on E85 blend.
When will the WagonR Flex Fuel be launched?
Maruti Suzuki is expected to launch the WagonR Flex Fuel variant in early 2026.
Will the Flex Fuel WagonR cost more than the petrol version?
Yes, the Flex Fuel version is likely to be ₹20,000-₹25,000 more expensive due to technical upgrades.
Can the Flex Fuel model run on normal petrol?
Yes, Flex Fuel vehicles can operate on petrol, ethanol, or any mix of both within the certified range (E20 to E85).
Is alternative fuel safe for the engine in the long run?
Yes, the engine and fuel system are specially modified to handle ethanol blends without damaging components, ensuring long-term durability.
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