MTBE includes an oxygen molecule that promotes more thorough combustion in the engine.

The additive, methyl tertiary butyl ether, includes an oxygen molecule that promotes more thorough combustion in the engine.

Highly concentrated sources of oxygen promote rapid combustion.

This setup causes a swirling of the intake fuel air mixture which promotes better combustion.

The additive is a liquid with an oxygen molecule that promotes more complete combustion in engines.

A scrubbing action is present which assures contact between the combustible and oxygen, thus promoting rapid combustion and reducing carbon loss.

They said a fan used to force air into the furnace to promote efficient combustion may not have worked properly because the door was open.

It developed a different type of two-barrel carburetor which promoted better combustion of the fuel in the engine.

A larger firebox promotes more efficient combustion of fuel and also increases the heat available to the boiler.

Oxygen is present in methanol, alcohol and other combustible liquids that can be added to gasoline, promoting fuller combustion.