The New Zealand Railways Magazine, Volume 2, Issue 4 (August 1, 1927)
Oil-Burning Locomotives
Oil-Burning Locomotives.
The great coal shortage in Britain last year made it necessary for many of the railway companies to convert a portion of their locomotives to burn oil fuel. On the London, Midland, and Scottish, some of the famous express engines of the Prince of Wales class were so converted. The locomotives required but slight structural alterations to carry and to burn the oil, for which each engine had a storage capacity of from 800 to 1,500 gallons. The average consumption of oil worked out at 3 1/2 to 4 gallons per mile according to the type of engine and conditions of service.