B10
Published 8 November 2026, 22:44
B10 — the label for diesel with up to 10% biofuel
A marking on the fuel pump under the NP EN 16942 standard: diesel with up to 10% bio-additive (FAME) by volume. Such diesel has been allowed in Portugal since 1 October 2026 (Decreto-Lei n.º 188/2026). It is a permission, not an obligation: whether to sell B10 or stay with B7 is up to the seller.
Where you come across it. A framed label above the nozzle on the pump.
Not every diesel engine is designed for 10% bio-additive — check the car's handbook. Choose the right diesel by the label, not by the fuel name on the display.
Official website: data.dre.pt/eli/dec-lei/188/2026/09/21/p/dre