Replaces:~ Ford 5004900, Lucas 400051, 405468, DRB101C, RA1. Austin A40. for use on Lucas Distributors 40284A-K DM2P4. from 1952 on. If you do fill up with E10, dilute with E5 as soon as possible. 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.