# Contaminated with oil, grease etc. — Vehicle inspection defect categories: MOT major, minor and dangerous verdicts For Contaminated with oil, grease etc., defect is Contaminated with oil, grease etc; category is Major; inspection item number is 1.1.14; defect reference is (b); inspection item is Brake discs and drums, recorded from its source on 2026-08-06. - **Defect:** Contaminated with oil, grease etc. _(verified: appears in the quote below)_ - **Category:** Major _(verified: appears in the quote below)_ - **Inspection item number:** 1.1.14 - **Defect reference:** (b) _(verified: appears in the quote below)_ - **Inspection item:** Brake discs and drums - **Authority:** DVSA MOT (motorcycles, classes 1 and 2) _(our reading, not quoted from the source)_ ## What the source says > (b) | Contaminated with oil, grease etc. | Major ## Source - https://www.gov.uk/guidance/mot-inspection-manual-for-motorcycles/1-brakes Last verified: 2026-08-06. Review by: 2027-02-02. Part of [Vehicle inspection defect categories: MOT major, minor and dangerous verdicts](https://referencesource.org/vehicle-inspection-defect-categories/).