Will E20 Petrol Affect Your Motor Insurance Claim? Here's What Vehicle Owners Need to Know
The Centre has clarified that using E20 petrol alone cannot lead to motor insurance claim rejection. Here's what the latest advisory means for insurance, warranties and vehicle owners.
The government has clarified that using E20 petrol alone will not lead to motor insurance claim rejection. It also dismissed rumours about engine damage and confirmed that E20 does not invalidate vehicle warranties when used as recommended.
As E20 petrol becomes the standard fuel across India under the Ethanol Blended Petrol (EBP) Programme, many vehicle owners have questioned whether using the fuel could affect their motor insurance claims. The concern gained traction after viral social media posts claimed insurers could reject claims if a vehicle was found running on E20 petrol.
The government has now categorically dismissed these claims, saying that using E20 fuel does not invalidate motor insurance or automatically lead to claim rejection.
E20 alone cannot lead to claim rejection
According to the Ministry of Petroleum and Natural Gas, insurers assess motor insurance claims based on the cause of damage, policy terms, exclusions and survey findings, not simply on the type of fuel used.
The ministry said insurers and original equipment manufacturers (OEMs) have confirmed that E20 fuel has no impact on the validity of motor insurance or manufacturer warranty in India. The Society of Indian Automobile Manufacturers (SIAM) has also stated that warranties will continue to remain valid for vehicles using E20 fuel that meets prescribed standards.
Earlier, insurance experts had also clarified that a claim can only be rejected if an insurer establishes that the damage was directly caused by a policy exclusion. Merely using E20 petrol is not sufficient grounds to deny a claim.
What about vehicle warranty?
While the government has clarified that E20 does not invalidate insurance or warranty, vehicle owners should still follow the fuel recommendations mentioned in their owner's manual.
For vehicles that are not designed to run on E20, manufacturers may examine whether damage resulted from prolonged use of incompatible fuel while deciding warranty claims. This, however, is separate from motor insurance, which is governed by policy terms and the actual cause of damage.
Government rejects claims of engine damage
The ministry has also rejected viral claims that E20 damages engines or significantly reduces vehicle performance.
According to the government, E20 was introduced only after extensive testing by the Automotive Research Association of India (ARAI), SIAM, Indian Oil Corporation (IOCL) and vehicle manufacturers. No widespread pattern of engine failure linked to E20 has been reported since its rollout.
The government added that ethanol is a high-octane fuel, with a research octane number of around 108.5, compared with 84.4 for petrol. Blending 20% ethanol raises the effective octane rating of petrol to around 95, helping improve combustion and reduce emissions in compatible vehicles.
On mileage, the ministry said claims that E20 reduces fuel efficiency by 30% are misleading. The 30% figure refers only to ethanol's lower energy content compared with petrol, while actual mileage depends more on driving habits, tyre pressure, servicing and vehicle condition.
EBP programme reaches major milestone
The clarification comes as India achieves a significant milestone under the Ethanol Blended Petrol Programme.
According to the ministry, ethanol blending has increased from less than 1.5% in 2013-14 to 20% in 2025-26, allowing India to achieve its blending target five years ahead of schedule.
Ethanol procurement has risen from around 38 crore litres in the Ethanol Supply Year (ESY) 2013-14 to a projected over 1,200 crore litres in 2025-26. Production capacity has also expanded nearly fivefold, from 421 crore litres in 2014 to around 2,000 crore litres in 2026.
Since ESY 2014-15, the programme has helped save more than ₹1.90 lakh crore in foreign exchange, substitute over 310 lakh metric tonnes of crude oil, reduce around 930 lakh metric tonnes of carbon dioxide emissions and generate over ₹1.60 lakh crore in additional income for farmers.
Automakers back E20
Leading automobile manufacturers have also supported the government's position.
Maruti Suzuki said it serviced 2.84 crore vehicles during FY 2025-26, including more than 1.5 crore vehicles older than three years that were not originally E20-certified, yet found no E20-related damage. Toyota Kirloskar Motor and Hero MotoCorp have similarly stated that extensive testing and service data show no abnormal engine wear or increase in damage attributable to E20 fuel.
For vehicle owners, the government's message is clear: using E20 petrol by itself will not affect your motor insurance claim. However, owners should continue following their manufacturer's fuel recommendations and maintenance schedule, particularly for older vehicles, to ensure smooth performance and avoid potential warranty-related disputes.