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HMRC internal manual

Oils Technical Manual

HM Revenue & Customs
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Tables: table I - mineral oil products and their markers

(This content has been withheld because of exemptions in the Freedom of Information Act 2000)

Oil Product Marked at … Used for … Markers added
(MGO) also known as ‘Red Diesel’ Straight from the refinery (duty suspended warehouse), or at a Remote Marking Point (RMP) Agricultural vehicles  

Vehicles used off-road


Excepted vehicles listed in schedule 1 of HODA

Heating Fuel

Marine Engines C1 Solvent Red 24 or similar

plus Quinizarin

plus Euro-marker      
  Kerosene Straight from the refinery (duty suspended warehouse) or because it is unmarked AVTUR that has become contaminated or ‘Off-specification’. This is either marked at the RMP or on collection by a remote marker. Waste AVTUR for use as light furnace fuel.
Primarily this is Domestic Heating Oil (Paraffin) Euro-marker plus


( No Dye is added to MKO)        
  Marine Diesel Straight from the refinery or because it was previously unmarked fuel that is being re-landed or at either a RMP Ships and boats, inboard and outboard engines, hovercraft. Whilst there is no legal requirement for Marine Diesel to be marked, it is our policy to encourage marking.