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).
Oil consumption of vehicle 34 EX, including mileage readings and oil quantities added.
| Identifier | ExFiles\Box 144\3\ scan0137 | |
| Date | 4th January 1937 | |
| CX{Major Len W. Cox - Advertising Manager} RECEIVED 6 JAN RC{R. Childs}6/L/4.1.37. Re: 34 EX - Oil Consumption. The sump of the above car was full at the speedo reading of 16341. 16506 1 qrt. 16840 1 qrt. 17019 1 qrt. Miles for month - 678 to 3 quarts of oil - 904 m.p.g. 15,000 miles with production Pistons, Rods (drilled) & gashea liners 3,000 - approx since L. rings fitted in Sept 1936. RC.{R. Childs} | ||