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).
The mileage, fuel consumption, and modifications for a Cast Iron Engine B.60.
| Identifier | ExFiles\Box 124\2\ scan0213 | |
| Date | 13th July 1940 | |
| 1044 FOR FILES 13.7.40. Total mileage to date on Cast Iron Engine B.60 No.3 fitted in 9.B.V. - 3,886 mls. Petrol consumption B.3.D. needles - 15 M.P.G. Oil consumption - 1152 M.P.G. The oil consumption should improve now that the oil leak from the rocker cover has been cured. Standard B.3.E. needles havenow been fitted to the carburetters and again consumption should improve. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager} | ||