Representational image NEW DELHI: A report by Automotive Research Association of India (ARAI), which recommended rollout of E20, had concluded that using the fuel in E10-compliant vehicles showed deterioration in rubber parts of fuel-system components, such as hoses, gaskets, seals and O-rings.The study, not yet made public, has been a reference point for govt and vehicle makers. It had said these parts “may need replacement”. On all vehicles tested, E20 was found to have no adverse impact on metallic components, and emissions with E20 were within legislative limits on E10-compatible vehicles.The study’s findings on the impact of E20 fuel on E10 vehicles also stated that during “4-wheeler engine durability test”, the performance of one BS-IV engine was acceptable with E20, but “issue was observed with BS-VI turbo charged engine after 265 hours of durability”.The part of the study that dealt with “engine durability” stated that two four-wheeler vehicle manufacturers, or OEMs, carried out the test. While for one OEM, no issue was observed for engine durability after 400 hours of testing and performance was acceptable with E20 fuel, in the case of the other OEM, “thermomechanical failure of exhaust valve was observed in the engine(s) tested cumulatively for 809 hours”.People aware of the findings said there could be other reasons for thermomechanical failure of the exhaust valve in the case of the second OEM. However, experts involved in vehicle testing said that generally engine durability tests are carried out for 2,000 hours.As per the report, engine durability tests conducted by three two-wheeler manufacturers found no issue, and the “performance is acceptable with E20 fuel”.It had also concluded that fuel consumption of vehicles with E20 increased 2-6% compared to E10. However, the percentage increase in fuel consumption varies vehicle to vehicle.Get the latest India news and live updates. Download the TOI App.End of ArticleFollow Us On Social MediaVideosRam Mandir Trust Meeting: Champat Rai’s Resignation Accepted, Donated Items Put On DisplayPM Modi Praises BJP Chief Nitin Nabin After Kejriwal’s ‘Who Are You’ Remark | WatchBaruipur Rape Horror: Mamata Leads Protest, CM Suvendu Vows to Ensure Death PenaltyRam Mandir Trust Chief Demands Strict Action As Donation Probe Intensifies FurtherIran Terms India’s Attendance At Khamenei Funeral ‘Deeply Valued Gesture’, Sends Formal GratitudeWedding, Car, Cash Gifts: Ram Temple Donation ‘Theft’ Accused’s Rs 19 Lakh Spending TrailMajor Landslide Hits Mumbai-Pune’s ‘Missing Link’; Flooding And Diversions Trigger Long Traffic JamsCongress Vows Fierce Fight Against Bill To Remove Ministers After 30 Days In CustodyAAP MP Sanjay Singh Targets VHP Chief Over Ram Mandir Probe, Demands Wider InvestigationGymkhana Club Challenges Eviction Notice, Delhi High Court Issues Notice To Centre | Watch123Photostories5 amazing cheetah facts that most people don’t know5 viral money affirmations people are repeating to attract wealth and abundanceFrom the nightingale to the canary: 5 birds with the world’s most beautiful songs6 pet fish that can live for several years with proper care: Long-living aquarium fish perfect for beginners and experienced owners8 everyday habits that kids raised in the ’60s, ’70s, and ’80s rarely needed reminders for and what today’s parents can learn from them10 weird fruit trees you won’t believe actually existKangana Ranaut’s blue Leheriya saree is the bold airport fashion statement of the seasonCopperhead vs Water snake: 6 easy ways to tell the difference quickly7 summer potato salads that are filling, nutritious and finger-licking deliciousJEE Advanced AIR 2 Kabir Chhillar shares 5 smart prediction tips that worked for him123Hot PicksRam temple donationITR filing FY 2025-26Khamenei funeralThomas TuchelMumbai school holidayKimi AntonelliBank holidayMumbai schools holidayMumbai-Pune expresswayTop TrendingOzempic ShaadiAgnipath Scheme ReviewNainital Sex RacketFIFA World Cup 2026Bengal rapeRam temple donationMumbai rainBank holiday todayKanpur Woman AssaultKCET mock seat allotment
NEW DELHI: A report by Automotive Research Association of India (ARAI), which recommended rollout of E20, had concluded that using the fuel in E10-compliant vehicles showed deterioration in rubber parts of fuel-system components, such as hoses, gaskets, seals and O-rings.The study, not yet made public, has been a reference point for govt and vehicle makers. It had said these parts “may need replacement”. On all vehicles tested, E20 was found to have no adverse impact on metallic components, and emissions with E20 were within legislative limits on E10-compatible vehicles.The study’s findings on the impact of E20 fuel on E10 vehicles also stated that during “4-wheeler engine durability test”, the performance of one BS-IV engine was acceptable with E20, but “issue was observed with BS-VI turbo charged engine after 265 hours of durability”.The part of the study that dealt with “engine durability” stated that two four-wheeler vehicle manufacturers, or OEMs, carried out the test. While for one OEM, no issue was observed for engine durability after 400 hours of testing and performance was acceptable with E20 fuel, in the case of the other OEM, “thermomechanical failure of exhaust valve was observed in the engine(s) tested cumulatively for 809 hours”.People aware of the findings said there could be other reasons for thermomechanical failure of the exhaust valve in the case of the second OEM. However, experts involved in vehicle testing said that generally engine durability tests are carried out for 2,000 hours.As per the report, engine durability tests conducted by three two-wheeler manufacturers found no issue, and the “performance is acceptable with E20 fuel”.It had also concluded that fuel consumption of vehicles with E20 increased 2-6% compared to E10. However, the percentage increase in fuel consumption varies vehicle to vehicle.
