{"nhtsa_id":10028860,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-06-03","date":"2009-01-05","document_id":"EFN-E-06033","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"CUMMINS: EXCESSIVE OIL BUILDUP/CARRYOVER INTO THE VEHICLE AIR SYSTEM FROM A KNORR BREMSE 460 TWIN CYLINDER AIR COMPRESSOR. MODEL AND MODEL YEARS UNKNOWN. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10028860","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"CUMMINS","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":[]}