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).
Continued note on oil consumption at each valve.
| Identifier | ExFiles\Box 74\3\ scan0323 | |
| Date | 9th June 1922 | |
| -2- Hm{Capt. W. Hallam - Head Repairs}/NRC{N. R. Chandler}3/W9.6.22 Contd. The consumption of oil is about a teaspoonful in 300 miles at each valve. [handwritten 'JSH'] Hm{Capt. W. Hallam - Head Repairs}/NRC.{N. R. Chandler} | ||