The oil consumption for car B 119 JY, tracking mileage and oil added.
| Identifier | ExFiles\Box 144\3\ scan0199 | |
| Date | 4th May 1937 | |
| CX. {Major Len W. Cox - Advertising Manager} RC {R. Childs} 5/L/4.5.37. Re: B 119 JY - Oil Consumption. ------------------------ The sump of the above car was full at the speedo reading of 603. 745 1 pt. Miles for month - 142 to 1 pint of oil - 1136 m.p.g. RC. {R. Childs} ✓ POST. Received 5 MAY 1937 | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).