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).
Analysis of oil composition, acidity, and lubricating value.
| Identifier | ExFiles\Box 76\3\ scan0007 | |
| Date | 14th February 1916 | |
| R.R. 6. (500T) (S.C. 523-14-2-16) H.{Arthur M. Hanbury - Head Complaints} ROLLS-ROYCE, LIMITED. INSTRUCTIONS. To.......................................................191 Order No......................... Customer's No......................... Acidity 2.8% (high) Composition Castor Oil 30% Mineral " 43% Fatty (similar to Olive) 27% Lubricating Value Fair. Signed....................................... This Sheet must be filed on completion of work. | ||