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).
Letter to The Vacuum Oil Company Ltd. requesting viscosity charts for engine oils.
| Identifier | ExFiles\Box 145\1\ scan0162 | |
| Date | 21th April 1936 | |
| X1229 Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Mths.{Reg Matthews}10/KW. 21st April, 1936. The Vacuum Oil Company Ltd., Caxton House, Westminster, LONDON, S.W.1. 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 can possibly supply them in connection with oil consumption experiments now being carried out. We should be particularly pleased if you could let us have the figures for Mobiloil Arctic along with the figures of the other oils. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||