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).
Record of oil consumption for car 3 CP 10 over a three-month period.
| Identifier | ExFiles\Box 144\3\ scan0302 | |
| Date | 3rd May 1938 | |
| CX.{Major Len W. Cox - Advertising Manager} Re: 3 CP 10 - Oil Consumption. The sump of the above car was full at the speedo reading of 6401. 6970 1 qrt. 7660 1 qrt. 7937 1 qrt. 8641 2 qrts. 9765 1 gall. 10944 1 gall. 11792 1 qrt. Taken over a period of three months. Miles for period - 5391 to 3 1/2 gallons of oil - 1540 m.p.g. RC.{R. Childs}✓ RECEIVED CX{Major Len W. Cox - Advertising Manager} MAY 4 1938 POST MAY 14 | ||