Investigating a class action lawsuit on behalf of consumers of Generac generators’ Guardian Series. Consumers have reported Guardian Series generators are prone to oil leaks, which may lead to engine failure. The Guardian Series is typically sold with a product warranty of two years. However, consumers have claimed Generac has failed to inform them of this costly defect within the two-year warranty period. If you purchased a Generac Guardian Series generator and it suffered from oil leaks or its engine failed, please submit your information.