General Motors has issued a technical bulletin clarifying a key aspect of vehicle manufacturer warranties. According to the document, any engine failures resulting from putting diesel fuel into a gasoline-powered vehicle are not covered under warranty or eligible for compensation from the automaker.

This clarification stems from a recent widespread incident in Colorado, USA, where a large batch of diesel fuel was mistakenly delivered to gasoline pumps. This error caused significant problems for a large number of vehicle owners, with engines suffering serious issues after being filled with the wrong fuel.

Consequently, owners affected by such situations are advised to seek compensation directly from the fuel seller or the insurance company responsible for product quality. The automaker, for its part, declines to cover the costs associated with repairing the damage from this type of mistake.