Authorities in Selangor, Malaysia are investigating complaints of contaminated RON95 petrol at seven petrol stations following reports from numerous motorists. Drivers experienced a range of vehicle issues after refueling, including unusual engine noises, jerking motions, and a loss of engine power. Several vehicles reportedly failed to start, and some experienced damage to their engine valves. The investigation aims to determine the source of the contamination and prevent further issues. Authorities have not yet released details regarding the specific petrol stations involved, but are urging affected motorists to come forward. The situation has raised concerns about fuel quality and consumer safety in the region. Further updates will be provided as the investigation progresses in Selangor, Malaysia.