How far can you travel on 1 liter of CN fuel?
A competition of ideas and technology challenging the limits!

What is the Honda Eco Mileage Challenge…

The Honda Eco Mileage Challenge is a forum for honing skills, based on Honda 4-stroke engines, where participants challenge the infinite possibilities of how many kilometers can be traveled on 1 liter of CN fuel, competing with original ideas and technology.

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Event Information

Saturday, June 20, 2026
Honda Eco Mileage Challenge 2026 39th Suzuka Tournament
[Venue: East Course]

Organizer: Honda Mobilityland Corporation / Sponsor: Honda Motor Co., Ltd. / Cooperation: Maxbrain Co., Ltd.

<Competition Details>
This competition is conducted in accordance with the Honda Eco Mileage Challenge National Tournament Guidelines. Participants use competition vehicles built according to these regulations to run the designated course within the specified time, and their fuel efficiency is measured.
The ranking will be determined from the team with the lowest fuel consumption.

Event Class

Group Categories <All 6 Classes>

CN Group I (Junior High School Class)
CN Group II (High School Class)
CN Group III (University, Junior College, Technical College, and Vocational School Student Class)
CN Group IV (General Class)
CN 2-Person Class
CN 2 Wheels Class

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A class using carbon-neutral fuel was established starting in 2024. For more details, please see the page below.
For information about carbon-neutral fuel, click here (External Site) >

Tournament Information

Tournament Overview

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