What Oil should be used in Aga range cookers?

Aga range cookers require 28 second commercial kerosene oil. This can also be know as 'class 2 kerosene to BS 2869 standard'. Ask your supplier specifically if its suitable for a vaporising cooker!

This is generally the same stuff as that supplied for domestic oil hot water boilers. The quality of oil in the UK is generally very high but even so most traditional oil fired cookers, ie NOT pressurised, will require servicingtwice per year.