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Mahindra says all its petrol vehicles can safely run on E20 fuel, although models built after April 1, 2025 are specifically calibrated to deliver better acceleration and fuel efficiency
Amid the ongoing debate surrounding E20 petrol compatibility, Mahindra has issued fresh clarifications through both an official social media statement and a customer care email. While the company has reiterated that all its E20-compliant petrol vehicles have undergone extensive testing, an email response sent to a customer provides additional insights into how older and newer Mahindra petrol vehicles differ when running on E20 fuel.
The clarification comes after recent viral allegations surrounding E20 fuel and a subsequent press conference organised by the Ministry of Information & Broadcasting, where executives from Toyota, Maruti Suzuki, Hero MotoCorp and Hyundai defended the government’s E20 rollout.
Official statement on E20 fuel compliance#Mahindra #MahindraAutomotive #MahindraSUVs #E20Fuel pic.twitter.com/aKu39VsWXx
— Mahindra Automotive (@Mahindra_Auto) July 5, 2026
Mahindra: All petrol vehicles can safely use E20
In response to a customer who sought clarification on using E20 petrol in vehicles originally designed for E10 fuel, Mahindra Customer Care stated: “Mahindra engines are fully compliant with existing gasoline standards and all our vehicles can be operated safely with E20 fuel.”
This is a broader statement than Mahindra’s public social media post, which specifically referred to E20-compliant vehicles. According to the email, vehicles manufactured after April 1, 2025 have been specifically calibrated for E20 fuel to optimise acceleration and fuel efficiency. “Vehicles produced post April 1, 2025, are specially calibrated for E20 fuel to ensure acceleration and fuel efficiency.”
Mahindra Customer Care Replies
Older vehicles remain safe, but may feel different
Mahindra also acknowledged that owners of vehicles manufactured before April 1, 2025 could notice minor differences in performance. The company said earlier-produced vehicles remain completely safe to drive on E20 fuel, but customers may experience a slight variation in acceleration or fuel efficiency depending on their driving behaviour.
This aligns with what several industry representatives stated during the government’s recent press conference, where manufacturers acknowledged that E20 fuel has slightly lower energy content than E10, potentially leading to a small reduction in fuel economy. However, they maintained that E20 does not cause damage to compatible engines.
No significant adverse impact on engine performance
Industry-wide reassurance continues
Mahindra’s clarification follows similar public statements from other manufacturers. Toyota recently attributed a viral Innova Hycross case to contaminated fuel rather than E20 itself, while executives from Maruti Suzuki, Toyota, Hyundai and Hero MotoCorp defended E20 compatibility during the government’s press conference.
With concerns continuing to circulate on social media, manufacturers appear to be stepping up communication efforts to reassure existing owners that E20 petrol is safe to use, while also explaining that newer models have been specifically optimised to extract the best possible performance and efficiency from the higher ethanol blend.