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CEN/TR 18238:2025

Automotive fuels - E20 petrol - Background on the parameters required, their respective limits and justification CEN/TR 18238:2025

Publication date:   Feb 17, 2026

General information

60.60   Standard published   Dec 24, 2025

CEN

CEN/TC 19 Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin.

Technical Report

75.160.20   Liquid fuels

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Scope

This document gives the technical rationale for the requirements and parameters for petrol as defined in CEN/TS 18227, with a minimum oxygen content of 3,7 % (m/m) and a maximum of 8,0 % (m/m). This fuel has maximum 20,0 % (V/V) ethanol and/or of 22 % (V/V) fuel ethers with 5 or more carbons.
NOTE 1 This document is directly related to CEN/TS 18227 and will be updated once further publications take place.
NOTE 2 For the purpose of this document, the terms “% (m/m)” and “% (V/V)” are used to represent respectively the mass fraction and the volume fraction.

Related legislation

Legislation related to this standard

98/70/EC

Quality of petrol and diesel fuels (Dir. 93/12/EEC amendment)

Legislation 98/70/EC

Life cycle

NOW

PUBLISHED
CEN/TR 18238:2025
60.60 Standard published
Dec 24, 2025




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