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 recommendations and the viability of using Aero Shell as an alternative.
| Identifier | ExFiles\Box 179b\3\ img344 | |
| Date | 16th March 1933 | |
| -3- Ha/Lid.{A. J. Lidsey}/KT.16.3.33. At the same time there is not sufficient evidence to warrant the use of this oil in preference to the oils we recommend should be used on our cars. The present oils are entirely satisfactory and cause us no trouble, but if for any reason it is desired to offer three alternative oils there appears to be nothing against Aero Shell. Ha/Lid.{A. J. Lidsey} | ||