---
title: Coolant in mixed fuel: after collection
url: https://cityfuel.services/questions/what-happens-to-coolant-contaminated-mixed-fuel-after-collection/
publisher: City Fuel Services Ltd
---

# What happens to coolant-contaminated mixed fuel after collection?

In brief

The glycol and water layer is separated and treated; the fuel is recovered. Petrol and diesel cannot simply be separated by settling, so mixed fuel is tested, dewatered and recovered by reprocessing: blended into industrial fuels or sent as refinery feedstock, where distillation separates it again. Call [07950 582635](tel:+447950582635) or [send an enquiry](https://cityfuel.services/enquiry/).

## Paperwork for mixed fuel contaminated with coolant

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 coolant in mixed fuel does to value

Coolant adds volume without value, so the terms reflect the fuel content.

## How City Fuel Services handles waste mixed fuel

Every load of waste mixed fuel is assessed before anything is booked. Tell us the quantity, the containers and any contamination; we confirm the terms, collect with a suitable vehicle, and take it to a permitted facility 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.

**Key facts**

| Problem | Coolant in Mixed fuel |
| --- | --- |
| Recoverable? | Yes. |
| Fuel | [Mixed fuel](https://cityfuel.services/fuels/mixed-fuels/) |
| Also called | mixed petrol and diesel, cross-contaminated fuel, petroleum distillates |
| Waste code | 13 07 03* (other fuels (including mixtures)) |

## Related questions

- [Can mixed fuel contaminated with coolant be recovered?](https://cityfuel.services/questions/can-mixed-fuel-contaminated-with-coolant-be-recovered/)
- [Is mixed fuel contaminated with coolant worth anything?](https://cityfuel.services/questions/is-mixed-fuel-contaminated-with-coolant-worth-anything/)
- [What should I do with mixed fuel contaminated with coolant?](https://cityfuel.services/questions/what-should-i-do-with-mixed-fuel-contaminated-with-coolant/)
- [How do you remove coolant from mixed fuel?](https://cityfuel.services/questions/how-do-you-remove-coolant-from-mixed-fuel/)
- [How does coolant get into mixed fuel?](https://cityfuel.services/questions/how-does-coolant-get-into-mixed-fuel/)
- [How do you stop coolant getting into mixed fuel?](https://cityfuel.services/questions/how-do-you-stop-coolant-getting-into-mixed-fuel/)
- [What happens to water-contaminated mixed fuel after collection?](https://cityfuel.services/questions/what-happens-to-water-contaminated-mixed-fuel-after-collection/)
- [What happens to AdBlue-contaminated mixed fuel after collection?](https://cityfuel.services/questions/what-happens-to-adblue-contaminated-mixed-fuel-after-collection/)
- [What happens to oil-contaminated mixed fuel after collection?](https://cityfuel.services/questions/what-happens-to-oil-contaminated-mixed-fuel-after-collection/)

**Official guidance:** [GOV.UK: hazardous waste](https://www.gov.uk/dispose-hazardous-waste).

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City Fuel Services Ltd, Fairfield Road, Droylsden, Manchester M43 6AX. Call 07950 582635 or send an enquiry at https://cityfuel.services/enquiry/.