A major component of the kit used for CNG conversion is a device called Mixer which ensures correct air/fuel mixing in a car both in stationary and dynamic condition. There are two types of mixers. One is called Variable Ventury Mixer. It is an advanced and technically sophisticated type of mixer which dramatically improves drivability of the vehicle, reduces vehicle maintenance by eliminating need for constant engine adjustment, and saves fuel cost by applying improved mixing process.

The other type is called Fixed Ventury Mixer. It is a conventional and outdated technology. Due to uncontrolled mixing of air and fuel (gas) it results in poor vehicle performance, comparatively less fuel economy, and power loss.

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