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).
Request for engine oil viscosity charts sent to Messrs. C.C. Wakefield & Co. Ltd.
| Identifier | ExFiles\Box 145\2\ scan0101 | |
| Date | 21th April 1936 | |
| X123) Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Mths.{Reg Matthews}11/KW. 21st April, 1936. Messrs. C.C. Wakefield & Co.Ltd., Wakefield House, 30-32, Cheapside, LONDON, E.C.2. Dear Sirs, Would you please supply us with charts showing the viscosity of your engine oils for temperatures ranging from -5°C. to 150°C. We should like these figures if you could supply them, in connection with oil consumption experiments now being carried out. We should be pleased if you could supply us with the figures for Castrol 'Z' along with the figures of the other oils. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||