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).
Outlining the procedure for recording oil and petrol consumption on experimental cars.
| Identifier | ExFiles\Box 144\3\ scan0321 | |
| Date | 5th March 1940 | |
| 1220. Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} Rm.{William Robotham - Chief Engineer}9/ML.5.3.40. OIL CONSUMPTION ON EXPERIMENTAL CARS. After our conversation we should be glad if you would keep a very accurate record of the oil consumption and petrol consumption of experimental cars. We should like the sumps on these cars to be drained every 1,000 miles, or every two months, whichever is the shorter period, and oil consumption of each recorded. Rm.{William Robotham - Chief Engineer} | ||