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 at high speed and requesting views.
| Identifier | ExFiles\Box 11\3\ 03-page090 | |
| Date | 8th May 1930 guessed | |
| -5- It is the high speed work when the oil is burnt away and not noticed. We should like your views re this. G.W.H. [Signature] | ||