HS4 1½" SU Carburettors. Triumph Spitfire. 2 x Fibre washer. To date, petrol in the UK has contained up to 5% renewable ethanol (known as E5). will suit overhaul of. If your vehicle is not compatible with E10 fuel, you will still be able to use E5 by purchasing the ‘Super’ grade petrol from most filling stations.
