1 /5 Ali Abdulrazzaq: There’s an oil leak in my vehicle’s engine. When I first took it to the workshop, they diagnosed the source of the leak, claimed to have fixed it, and provided a warranty. However, the very next day, the oil leak persisted. I returned to the shop, and this time they told me the leak was actually coming from the top of the valve cover, not the bottom as originally diagnosed. They asked me to pay an additional $450 to fix it—without acknowledging that their initial diagnosis was incorrect.