What is the energy yield and power of a converted CNG engine compared to a petrol one?
Running on natural gas results in the following changes: a loss of maximum power of only 10% on maximum torque, which translates into a drop in top speed of only 5%-10%.
The fuel cost savings are due on the one hand to the different energy yields of the fuels and on the other hand to the government's tax policy.
In terms of energy yield, 1 kilogram of methane corresponds to approx:
- 1.675 litres of petrol
- 1,300 litres of diesel
- 2,000 litres of LPG