Yamaha FZ Blue Flex E85 Review: India's First Flex-Fuel FZ Tested on Paper

The Yamaha FZ Blue Flex E85 is now on sale in India at ₹1,24,240 ex-showroom, Delhi, making it the first motorcycle from the brand built to run on ethanol blends beyond the standard E20 pump fuel. That's just ₹400 more than the regular FZ-Rave it's based on, so Yamaha isn't charging a steep premium for the flex-fuel hardware underneath. On-road in Delhi, once RTO tax, insurance and handling charges are added, expect the FZ Blue Flex E85 to land around ₹1.40-1.42 lakh.

What Changed Under the Skin

Strip away the badges and the FZ Blue Flex E85 looks identical to the FZ-Rave it's built on — same 149cc air-cooled single, same telescopic fork, same 17-inch alloys with disc brakes at both ends. What's different sits inside the engine. Yamaha has reworked the fuel injector, ECU mapping and fuel-line materials so they can handle ethanol's corrosive properties at concentrations up to 85 percent. Peak output drops slightly as a result: 11.7hp at 7,250rpm and 12.8Nm at 6,000rpm, against 12.4hp and 13.3Nm on the standard FZ. That 0.7hp shortfall isn't a manufacturing compromise — it's physics. Ethanol simply carries less energy per litre than petrol, so every flex-fuel bike on sale today, from the Gixxer SF 250 FFV to the Splendor Plus Flex Fuel, gives up a bit of peak power for the ability to run on E85.

Does E85 Actually Save You Money?

Here's where most coverage of this launch stops short, and it's the number that actually matters to a buyer. E85 currently retails at around ₹82 a litre in Delhi against ₹103 for regular petrol — a big gap on paper. But Autocar India's real-world test on the Gixxer SF 250 FFV found fuel efficiency drops by close to 30 percent when running E85 instead of E20, and that eats into the savings faster than most riders expect. Run the same math on the FZ Blue Flex E85: at a realistic city mileage of 42kmpl on E20, cost works out to roughly ₹2.45 per km. Switch to E85 and mileage falls to about 29kmpl, pushing the cost to nearly ₹2.79 per km — despite the cheaper fuel. Over a typical 1,500km riding month, that's close to ₹4,185 on E85 versus ₹3,675 on E20, meaning E85 currently costs you more, not less, to run day to day. The upside only shows up once E85 pricing widens further or falls closer to ₹65-70 a litre, which industry watchers expect as blending infrastructure scales through 2026 and beyond.

EMI and On-Road Price for the Yamaha FZ Blue Flex E85

On a 20 percent down payment against the expected ₹1.41 lakh on-road price in Delhi, you're financing roughly ₹1,12,800. At a standard 11 percent interest rate over 60 months, that works out to an EMI of approximately ₹2,450 a month. Riders planning a shorter 36-month tenure will see the EMI climb closer to ₹3,700, so it's worth running both scenarios before walking into a dealership. Servicing costs stay close to the standard FZ-Rave up to 10,000km — expect around ₹4,000-4,500 across the first three scheduled visits, marginally higher than a regular FZ because of the added fuel-filter and injector checks that come with ethanol compatibility.

Where the FZ Blue Flex E85 Sits Against Rivals

This is where Yamaha's timing gets interesting. The only other E85-capable motorcycles on Indian roads right now are the Suzuki Gixxer SF 250 FFV, priced at ₹1.98 lakh, and Hero's Splendor Plus and HF Deluxe Flex Fuel models, which start under ₹83,000. That leaves a wide gap between a 100cc commuter and a 250cc performance bike — and the FZ Blue Flex E85 is the first flex-fuel motorcycle to sit squarely in the popular 150cc segment, with no direct like-for-like rival yet. Riders cross-shopping the standard FZ-Rave, which Drivio has already covered in detail, will find near-identical styling, features and ride quality here, just with the added E85 capability and a negligible price difference.

Verdict: Buy Now or Wait?

The Yamaha FZ Blue Flex E85 makes sense today if you want future-proofing more than immediate savings. E20 running costs are effectively identical to the standard FZ, so there's no penalty for choosing this variant even if you never touch E85 fuel. The catch is availability — E85 pumps remain limited to select cities, and until that expands, most owners will run this bike on regular petrol anyway. For riders in the six states where Yamaha's Blue Square dealerships are stocking it, and who live near an E85 outlet, this is a low-risk way to hedge against rising fuel prices as ethanol infrastructure grows. Everyone else can treat it as a well-specced FZ-Rave with a badge that'll matter more in a year or two than it does right now. Check the on-road price and EMI for the Yamaha FZ Blue Flex E85 in your city on Drivio.