What happens to chemically contaminated red diesel after collection?
In brief
It is assessed and sent to a facility permitted for that waste: treatment, energy recovery or incineration. Waste gas oil is tested, dewatered and filtered like diesel, then recovered into fuel use or refinery feedstock. Call 07950 582635 or send an enquiry.
Paperwork for red diesel contaminated with chemicals
It moves on a consignment note (special waste in Scotland) from you to the carrier to the permitted facility, and each keeps a copy.
What chemicals in red diesel does to value
Chemical contamination usually removes most or all of the value, and the load may carry a charge.
How City Fuel Services handles waste red diesel
Send us the five details: business and postcode, roughly how much waste red diesel there is, what it is and any contamination, how it is stored and reached, and whether you need one collection or regular ones. We assess it, confirm a rebate or a collection charge, and collect on a consignment note.
Terms used in this answer
- Consignment note
- The document that travels with hazardous waste from the producer to the receiving site. Each person in the chain completes and signs their part.
- Digital Waste Tracking
- The government's online service for recording waste movements. Permitted sites receiving waste in England and Wales have had to use it since 1 October 2026.
| Problem | Chemicals and solvents in Red diesel |
|---|---|
| Recoverable? | Often not. |
| Fuel | Red diesel |
| Also called | gas oil, rebated diesel, marked gas oil |
| Waste code | 13 07 01* (fuel oil and diesel) |
Related questions
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- Can red diesel contaminated with chemicals be recovered?
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Official guidance: GOV.UK: hazardous waste.