With skyrocketing petrol prices, millions of Indian commuters are searching for ways to cut down their daily travel costs. Hero MotoCorp, India’s largest two-wheeler manufacturer, has just dropped a game-changer. Marking a historic moment for the country’s mobility sector, Hero has officially launched the highly anticipated Hero Splendor Plus E85 Flex Fuel and its affordable sibling, the HF Deluxe Flex Fuel.
But what does “Flex Fuel” actually mean for your wallet, and should you upgrade? In this comprehensive breakdown, we will reveal everything you need to know about the pricing, the truth about the mileage drop, and whether these revolutionary E85-compatible commuters are worth your hard-earned money.
What is Flex-Fuel and How Does E85 Work?
Before we dive into the bikes, it is crucial to understand the technology. A flex-fuel vehicle (FFV) is equipped with a specially engineered internal combustion engine designed to run on more than one type of fuel—typically a blend of petrol and ethanol.
Most modern BS6 petrol bikes in India are compatible with E20 fuel (20% ethanol, 80% petrol). However, the new Hero MotoCorp flex fuel bikes are engineered to run on E85, meaning they can safely operate on a blend of 85% ethanol and 15% petrol.
Ethanol is a domestically produced biofuel derived from agricultural sources like sugarcane and maize. By heavily increasing the ethanol blend, India can drastically reduce its reliance on expensive imported crude oil while empowering local farmers.
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Pricing and Availability: What Will It Cost You?
Hero MotoCorp is known for aggressive, mass-market pricing, and they haven’t strayed from that strategy here. The new E85-compatible variants demand only a modest premium over their standard petrol counterparts.
- Hero HF Deluxe Flex Fuel Price: ₹72,792 (Ex-showroom, Delhi)
- Hero Splendor Plus E85 Flex Fuel Price: ₹82,810 (Ex-showroom, Delhi)
Compared to the top-end regular petrol variants, the HF Deluxe Flex Fuel is roughly ₹172 more expensive, while the Splendor+ sees a premium of around ₹2,479. This is an incredibly competitive pricing strategy considering the extensive internal engineering required to handle highly corrosive E85 fuel.
Hero has confirmed that these bikes will begin arriving at dealerships in July 2026, starting with deliveries in Delhi and select regions of Maharashtra, followed by a nationwide rollout.
Under the Hood: Specs and Upgrades
You cannot simply pour E85 into a standard petrol motorcycle. Because ethanol contains oxygen and has different chemical properties than petrol, it can quickly corrode standard rubber seals, fuel lines, and engine components.
To create the Hero Splendor Plus E85 Flex Fuel, Hero engineers made over 36 significant component changes. Both bikes retain the legendary 97.2cc, air-cooled, single-cylinder engine, but it has been heavily fortified.
Key Technical Upgrades Include:
- Upgraded Fuel System: Ethanol-resistant fuel lines, a dedicated high-capacity fuel pump, and modified fuel injectors.
- Advanced Filtration: A new secondary fuel filter designed specifically to handle the hygroscopic (water-absorbing) nature of high-ethanol blends.
- Recalibrated ECU: The Engine Control Unit has been completely remapped with sensors that automatically detect the ethanol-to-petrol ratio in the tank and adjust the air-fuel mixture and injection timing instantly.
Interestingly, because ethanol has a higher octane rating, the E85 fuel allows the engine to produce slightly more power! Running on E85, the 97.2cc motor produces 8.57 bhp at 8,000 rpm and 8.3 Nm of torque at 6,000 rpm—a slight bump up from the standard E20 variant.
Both bikes also feature tubeless tyres, side-stand engine cut-offs, and an upgraded semi-digital instrument cluster to display fuel levels accurately. The Splendor+ variant also retains Hero’s fuel-saving i3S idle-stop-start technology.
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The Mileage Truth: Will You Actually Save Money?
This is the most critical question for any commuter. Bikes like the Splendor and HF Deluxe are famous for their “fill it, shut it, forget it” efficiency. So, what happens when you switch to E85?
The hard truth is: Your mileage will drop.
Ethanol has roughly 30% less energy density per litre compared to pure petrol. Therefore, to travel the same distance, the engine must consume more fuel. When running the Hero Splendor Plus E85 Flex Fuel on an 85% ethanol blend, experts anticipate a mileage drop of approximately 20%.
If a standard Splendor+ delivers around 70 kmpl on E20 fuel, the E85 variant will likely return around 56 kmpl when running on E85.
So, how is this cheaper? The financial savings come entirely from the pump price. Union Petroleum Minister Hardeep Singh Puri recently confirmed that the government is finalising pricing to ensure E100/E85 is “substantially cheaper” than normal petrol—potentially 15% to 20% cheaper.
If E85 fuel is priced significantly lower (e.g., ₹82-₹87 per litre compared to ₹102 for petrol), the lower running cost per litre will offset the lower mileage per litre. Your running costs should theoretically achieve parity with, or slightly undercut, a regular petrol bike, while significantly reducing your carbon footprint.
Securing Your Ride: Loans and Insurance
Because the ex-showroom price of the Splendor+ E85 crosses the ₹80,000 mark (meaning on-road prices will hover near ₹95,000 to ₹1 Lakh depending on your state), many buyers will look into financing.
Securing a two wheeler loan for these new flex-fuel models will be identical to standard bikes. Most major banks offer competitive EMI schemes starting as low as ₹3,000 per month. Additionally, obtaining comprehensive bike insurance is vital, as the specialised ECU and fuel pump components on these flex-fuel models will be more expensive to replace in the event of an accident or fuel contamination.
Conclusion
The launch of the Hero Splendor Plus E85 Flex Fuel and the HF Deluxe Flex Fuel is a massive step forward for the Indian two-wheeler industry. Hero has managed to integrate advanced, eco-friendly technology into the nation’s most trusted and affordable commuter platforms without destroying the budget.
While the initial drop in fuel efficiency might shock traditional buyers, the promise of substantially cheaper E85 fuel means that commuters can look forward to greener rides without burning a hole in their pockets. If the government delivers on wide E85 pump availability and aggressive pricing by the end of 2026, Hero’s massive bet on flex-fuel will undoubtedly be a historic success.
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FAQs (Frequently Asked Questions)
1. Can I put regular petrol in the Hero Splendor Plus E85 Flex Fuel?
Ans: Yes, absolutely! The term “flex-fuel” means the bike is flexible. The smart ECU automatically detects what is in the tank. You can run it on 100% standard E20 petrol, E85, or any mixture of the two in between without damaging the engine.
2. Why will the mileage drop when using E85 fuel?
Ans: Ethanol has a lower energy density than petrol. This means the engine has to burn roughly 20% to 30% more E85 fuel to generate the same amount of power as regular petrol, resulting in lower kilometres per litre (kmpl).
3. When can I buy the new Hero flex fuel bikes?
Ans: Hero MotoCorp has announced that the E85 HF Deluxe and Splendor+ will begin arriving at dealerships in July 2026. The initial rollout will focus on Delhi and select regions of Maharashtra, with a pan-India expansion following shortly after.
4. Can I convert my old BS6 Splendor to run on E85?
Ans: Potentially, yes. Hero MotoCorp management has stated that they are exploring the possibility of offering retrofit conversion kits for older BS6 Gen-1 motorcycles. This conversion would require a new fuel pump, filter, and an ECU reflash.
5. Is E85 fuel currently available at petrol pumps in India?
Ans: The infrastructure is currently being developed. While E20 fuel is now standard across India, the government plans to roll out E85 and E100 dispensing stations rapidly, targeting up to 5,000 dedicated ethanol stations by 2027.