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 decision not to conduct exhaustive tests on Valvoline oil or add it to the recommended list.
| Identifier | ExFiles\Box 145\3\ scan0023 | |
| Date | 28th December 1934 | |
| 82465 To Wor.{Arthur Wormald - General Works Manager} From Hs.{Lord Ernest Hives - Chair} Hs.{Lord Ernest Hives - Chair}7/MJ.28.12.34. With reference to the attached. I am positive we have never carried out any exhaustive tests on Valvoline oil. We appreciate that it is a very good quality. We should expect R.R. cars to operate satisfactorily on it. We have no intention, however, of increasing our list of recommended oils. Hs.{Lord Ernest Hives - Chair} Attached: Bt{Capt. J. S. Burt - Engineer}3/H24.12.34. | ||