RoRo Quarter-Tank Rule: Vehicle Export Fuel Requirements

RoRo vehicle export fuel requirements explained: quarter-tank rule, IMDG limits, carrier checks at port gate, and how to comply before shipping.

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UK RoRo vehicle exports from Southampton, Tilbury, Sheerness, and Teesport follow the same maritime fuel limits as US and global carriers: typically one-quarter tank or less at gate-in.

What is the quarter-tank rule?

Finished-vehicle carriers (Wallenius Wilhelmsen, Höegh Autoliners, Grimaldi, Glovis) load thousands of cars per vessel. Fuel aboard is regulated under the IMDG Code. Terminals enforce:

  • Maximum ¼ tank for standard RoRo exports
  • No leaks — oil, diesel, or petrol leaks are automatic rejection
  • Working gauge — if the fuel gauge is broken, terminals may refuse or require empty tank

UK port gate checks

At compound entry (Southampton Western Docks, Tilbury2, Sheerness RoRo berth), staff check fuel level before issuing a parking slot. Peak season (July–August) compounds fill fast — a fuel rejection can cost you a sailing.

Quarter tank vs empty

  • RoRo deep-sea (Middle East, Africa, Americas): usually ¼ tank or less
  • Short-sea ferry-RoRo (Dover, Hull): often same rule; confirm with operator
  • Container export: empty tank required before sealing

How to comply

  1. Ask your forwarder for the carrier's written fuel limit
  2. Allow time for inland haulage plus drain — do not drain at the port gate
  3. Use GBIFDA-certified disposal for documentation
  4. Deliver to compound only when compliant

UK export documentation (related requirements)

Beyond fuel, UK vehicle exports require:

  • V5C / logbook and export notification to DVLA where applicable
  • Customs export declaration (CHIEF/CDS) via your freight forwarder
  • Proof of ownership and commercial invoice for customs

Your forwarder confirms cut-off dates for Southampton, Tilbury, Sheerness, or your load port.

Common questions

How much fuel can I leave in my car for RoRo export?
RoRo exports typically require one-quarter tank or less. Container exports require an empty tank.
Who checks fuel level at the port?
Terminal gate staff check the fuel gauge at compound entry. Some ports use dipstick verification.
Can EEK drain my tank before I deliver to port?
Yes. EEK drains tank and lines, documents litres removed, and disposes via licensed carriers. Book at /book-service?tracker=export or call 0808 280 6346.