{"nhtsa_id":621889,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-10-03","date":"2001-06-08","document_id":"0900501","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"INFORMATION REGARDING RED STAIN IN ENGINE OIL. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/621889","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"LIBERTY","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_jeep_liberty"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}