ARAI Report Warns E20 Fuel May Degrade Rubber Parts in E10-Compatible Cars
An unpublished report by the Automotive Research Association of India (ARAI) found that using E20 fuel in vehicles designed for E10 fuel can cause deterioration of rubber components. However, metallic parts were unaffected and vehicle emissions remained within regulatory limits. A BS-VI turbocharged engine showed problems following durability testing on E20 fuel, while a BS-IV engine did not exhibit similar issues. Two-wheeler engines demonstrated acceptable durability performance when run on E20 fuel. The report also noted that fuel consumption rose by two to six percent in vehicles using the higher ethanol blend.
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