Overview
- Following written replies in Parliament this week, ministers cited studies by IOCL, IIP, ARAI and SIAM that found no verified, widespread engine failures linked to E20 fuel.
- The government said manufacturers’ service data show no abnormal corrosion or wear and that OEMs continue to honour warranties for vehicles running on E20.
- Ministers acknowledged E20 can cut fuel economy by about 2–6% depending on vehicle age and type while reporting benefits such as better acceleration and roughly 30% lower CO2 versus E10.
- Testing flagged a specific caveat for some pre‑2016 BS‑III vehicles, which may require minor rubber or gasket replacements that officials say can be handled during routine servicing.
- Opposition parties and consumer groups are pressing for clearer liability rules, more testing transparency and data on long‑term maintenance costs, a dispute that could shape future oversight and consumer safeguards.