{"nhtsa_id":11033906,"type":"other","type_name":"Other","date_added":"2026-06-16","date":"2026-06-02","document_id":"112647","mfr_campaign":"OTHERDOC_170","replaces":null,"component":"FUEL/PROPULSION SYSTEM","mfr_system":null,"summary":"Fuel Fill All 2026 Jeep Grand Cherokee (WL) vehicles must be delivered to the customer with a full tank of premium gasoline (91 octane or greater) at initial delivery. The use of premium gasoline better supports engine performance during the break-in period (300 miles / 500 km). The reimbursement has been updated to reflect this premium gasoline allotment. Customers should refer to the vehicle Owner Manual for all ongoing fuel recommendations and requirements.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033906-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11033906-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11033906","components":[{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND CHEROKEE","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_jeep_grand-cherokee"]},{"make":"JEEP","model":"GRAND CHEROKEE 4XE","year_from":2026,"year_to":2026,"match":"base","vehicle_ids":["2026_jeep_grand-cherokee"]},{"make":"JEEP","model":"GRAND CHEROKEE L","year_from":2026,"year_to":2026,"match":"exact","vehicle_ids":["2026_jeep_grand-cherokee-l"]}],"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":[]}