{"nhtsa_id":10166907,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-11-01","date":"2019-10-29","document_id":"122-P4E6W-11","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"Overview of approved C20 engine oils for all Porsche models.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10166907-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10166907-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10166907","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"PORSCHE","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"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":[]}