A claimed 1.47 L/100 km will not appear on your odometer, and understanding why saves both money and disappointment. Every manufacturer figure we cite (retrieved 23 September 2026) is a standardised test value; this guide explains how to read it honestly.
What the claim measures
A lab cycle under controlled conditions: fixed speeds, fixed temperatures, one rider, no cargo, no gridlock. It exists so a Future 125 (1.47 L/100 km) and a Sirius (2.08 L/100 km) can be ranked fairly - our test-cycles explainer covers the methodology, including Honda’s own method-change note on the Winner R.
What Vietnamese reality adds
Stop-start traffic: long Hanoi jams idle fuel away at zero km/h. Heat and humidity: air-cooled engines work harder and fans/idling climb. Load: a passenger plus delivery box can add meaningfully to consumption. Terrain: any mountain route. Fuel quality and idling habits: cheap fixes, real effects. None of these have universal percentage figures - any site quoting “expect 20 percent worse” is estimating, and we will not.
How to plan with the claims
Use the claimed ladder as a ranking - it is genuinely reliable for ranking - then budget your own baseline: fill the tank, zero the trip, ride your real week, refill and divide. One tank of your own data beats any published figure. Our fuel-economy improvement guide covers the habits that move the number: steady throttle, correct tyre pressure, no extended idling, serviced air filter.
Rental context
The price-published rental classes here (Wave and Sirius, 150,000 VND/day) sit at 1.72 and 2.08 L/100 km claimed - plan roughly two litres of fuel per 100 km of city riding in your budget, then refine with your own measurement. Contact us to confirm current availability.