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).
Vehicle oil consumption, listing mileage readings against quantities of oil added.
| Identifier | ExFiles\Box 144\3\ scan0196 | |
| Date | 2nd April 1937 | |
| CX.{Major Len W. Cox - Advertising Manager} WHS 51220 Goodall RC{R. Childs}3/L/2.4.37. POST. Received 3 APR 1937 3-AZ-22 - Oil Consumption. - - - - - - - - - - - The sump of the above car was full at the speedo reading of 13812. . 14311 1 qrt. 14724 3 pts. 15490 1 pt. Miles for month - 1578 to 3 quarts of oil - 2104 m.p.g. RC.{R. Childs} ✓ | ||