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 and petrol consumption statistics for engine unit C-16.
| Identifier | ExFiles\Box 144\3\ scan0094 | |
| Date | 15th July 1936 | |
| To Rm.{William Robotham - Chief Engineer} X1220 Hs{Lord Ernest Hives - Chair}/WB.{Mr Brazier/Mr Bell}7/KW.15.7.36. Oil Consumption - 21-G-IV. Unit C-16. 32.2 sq.in.lbs. scraper rings. Otherwise standard engine. Total miles to date 1603. Oil used 4½ pints. Miles run 205. Average speed 45.5 M.P.H. Oil Consumption 362 M.P.G. Petrol Consumption 12.8 M.P.G. Average Air Temperature 18.5°C. " water " 83.0°C. " oil pressure 27 sq.in.lbs. Drivers: P. Rose & F.{Mr Friese} Walsh. Hs{Lord Ernest Hives - Chair}/W.Brazier. | ||