Emissions from commercial vehicles and less fuel economy

Emissions nowadays are a point of attraction .In india commercial vehicles places most vital role to stabilize our Indian economy but they pollute to. They are less efficient and major money goes in fuel economy. Here we should keep an eye on this to reduce emissions and as well as increase fuel economy .Atlast if we could achieve it for 20% also we can achieve more

Drivers are aren't aware how then can reduce emissions. As well as the company owner also aren't aware how then can save money in fuel economy.