"The hythane engines are powered by a fuel which is a mix of CNG and hydrogen (usually 20 per cent hydrogen by volume). We have been testing these engines at our Chennai facility," Ashok Leyland senior manager (Alternate Fuels Product Development) S Yoganandam told PTI.
He said it took the company two years to develop the hythane engine, the fuel technology for which has been provided by the Australian partner, but declined to comment on the investment into the project.
The six-cylinder, 6-litre engine is compliant with Bharat Stage IV emission norms and application of these engines to buses is at an advanced stage at Ashok Leyland, he added.