Eco-4 fuel enhancer


ECO-4 is suitable for engine sizes up to <400 HP



School districts are now using ECO-4 systems on their school buses

School Districts – School Bus Emissions Reduction

Pearland Independent School District announces that all their buses now use the ECO System Fuel Enhancer.

The entire Fleet of North East ISD is equipped with ECO’s. They are spec’d on New Bus Purchases.

ECO Systems are available on the State of Texas Buy Board.

International School Bus with DT-466 engine using the 009 kit and an ECO #4

Bluebird School Bus with Cummins 6.7 engine using the 005 kit and an ECO #4


Thomas School Bus with Cummins 6.7 engine using the 005 kit and an ECO #4

Reducing Regens and Maintenance cost in South Carolina Schools

Proven Track Record
ECO Systems has a long and proven track record of working with school district transportation departments of all sizes.

Ordering a New Bus?
When ordering new school buses you can request that the ECO-4 be spec’d on the new bus order. Thomas Bus Gulf Coast and International (IC) thru Longhorn Bus Sales will provide them for you.

When you see this sticker on the School bus, it is:
 Running More Fuel Efficient.
 Emitting Less Harmful Exhaust Gases and Particulates.
 Lowering Maintenance Cost.
 Saving Taxpayers Dollars $$$$$.

Environmental Day for North East I.S.D.

The ECO System was featured in the NEISD Environmental Day event in October, 2008

ECO Systems Fuel Enhancer devices have not only helped control their energy cost but also provided their students with cleaner air.