Road Transport Minister Nitin Gadkari tells the Rajya Sabha that E20 petrol use could require attention for certain components in older BS-III vehicles, specifically rubber parts. According to the information presented, studies do not show significant impacts on overall vehicle performance when legacy vehicles use E20, and no major performance differences or abnormal wear patterns are reported across general operations. The minister also notes that BS-VI vehicles continue to meet emission norms in tests using E20 fuel. The remarks indicate that while the majority of vehicle operation is not materially affected, some BS-III models may still require replacement or inspection of rubber components due to compatibility concerns. In related political commentary, Delhi Chief Minister Arvind Kejriwal alleges that manufacturers are under pressure to downplay potential risks of E20 compatibility for pre-2023 vehicles, though the reported parliamentary findings focus on the study-backed performance outcomes and the specific risk to certain rubber parts. The issue is framed as a targeted maintenance concern rather than a broad functional failure of legacy vehicles using E20.