{"nhtsa_id":11036021,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-08-07","date":"2026-07-02","document_id":"TSB200115","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"This Technical Service Bulletin provides instructions to detect the root cause of fuel consumption accuracy issues reported by customers. When comparing fuel consumption values in INSITE™ electronic service tool to customer measurements (vehicle mileage divided by liters of fuel filled) the results differ by more than +/- 3 percent. The root cause determined by investigations is inaccuracy in measurement performed by the end user. This is an update to the previously submitted communication.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036021-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11036021-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11036021","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"X15","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":[]}