Division 4.1.2 Conditions for a dual-fuel engine to idle using liquid fuel exclusively United Kingdom Original text. Later amendments are not shown. 4.1.2.1Division 4.1.2.1 4.1.2.2Division 4.1.2.2 4.1.2.3Division 4.1.2.3 ← Division 4.1.1 Division 4.1.2 Division 4.1.2.1 →