{"schemaVersion":"ready-scan.discovery-surface.v1","id":"urn:readyscan:corpus:buyer-question:crown-oil-q85754687-answer-ea72a25b451d09109464","key":"buyer_question:crown-oil-q85754687-answer-ea72a25b451d09109464","kind":"buyer_question","slug":"crown-oil-q85754687-answer-ea72a25b451d09109464","canonicalUrl":"https://directory.readyscan.ai/corpus/buyer-question/crown-oil-q85754687-answer-ea72a25b451d09109464","machineUrl":"https://directory.readyscan.ai/discovery/corpus/buyer-question/crown-oil-q85754687-answer-ea72a25b451d09109464.json","datePublished":"2026-10-22","dateModified":"2026-10-22","materialFingerprint":"fnv1a64:d049c8c3e2f6c429","membershipFingerprint":"fnv1a64:29620dec7a97c81e","relatedEntitySlugs":["crown-oil-q85754687"],"relatedSurfaceKeys":["buyer_question:crown-oil-q85754687-answer-0d80338e92e946cdd3ff","buyer_question:crown-oil-q85754687-answer-268a2e41fdcf11a81e7e","buyer_question:crown-oil-q85754687-answer-42410b9d9a1e85447a8a","buyer_question:crown-oil-q85754687-answer-59a1e15229301b525912","buyer_question:crown-oil-q85754687-answer-6451a29b4e5602b6cf16","evidence:crown-oil-q85754687"],"sourceIds":["ready-scan-subjects"],"provenance":[{"snapshotId":"crown-oil-q85754687-content-eb66ee43e106520e-snapshot","sourceId":"ready-scan-subjects","sourceRecordId":"Q85754687","sourceRevisionId":"Q85754687:content:e700b78eaae2c548","sourceContentHash":"fnv1a64:5462fac12915dc39","recordRevisionId":"Q85754687:content:e700b78eaae2c548","recordContentHash":"fnv1a64:9ee4cd53272776bb","sourceCanonicalUrl":"https://www.crownoil.co.uk/","sourceModifiedAt":"2026-10-22T08:07:40.690Z","observedOn":"2026-10-22","permission":{"basis":"public_information","evidenceUrl":"https://www.crownoil.co.uk/"},"attributionUrl":"https://www.crownoil.co.uk/"}],"quality":{"method":"same_kind_unique_trigram_floor","minimumUniqueTrigramRatio":0.3,"status":"passed"},"title":"What is AdBlue®?","summary":"Cited source answers across 1 active corpus record.","question":"What is AdBlue®?","answers":[{"entitySlug":"crown-oil-q85754687","entityName":"Crown Oil","answer":"“AdBlue® is the registered trademark name for an Aqueous Urea Solution (AUS 32) or Diesel Exhaust Fluid (DEF). It’s a non-toxic, odourless and colourless liquid consisting of 32.5% high-purity urea and 67.5% deionised water. It is not a fuel additive, but a separate fluid used in the exhaust stage of diesel engine systems.”","sourceUrls":["https://www.crownoil.co.uk/faq/adblue-faqs/"]}]}