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).
Suitable oils for use in Russia, including a table of their characteristics.
| Identifier | ExFiles\Box 76\4\ scan0162 | |
| Date | 5th February 1915 | |
| Wor{Arthur Wormald - General Works Manager}/Mcr2/L5215. 20143A Re suitable Oils for use in Russia. Mr Parsons. 5.2.15. In reference to your letter WP/1115, we may say that we are very well satisfied with Price's oils; we have made comparative tests between them and a great many other makes and they appear to us to be quite satisfactory. We give below the characteristics of Motorine B & C and also Amber gear oil A.{Mr Adams} | | Motorine B. | Motorine C. | Amber Gear Oil. | | :--- | :--- | :--- | :--- | | Sp.{Mr Spinney}Gr.{George Ratcliffe} at 60ºF.{Mr Friese} | .896 | .903 | .893 | | Visc. at 60ºF.{Mr Friese} | 4860 | 2830 | - | | " " 130ºF.{Mr Friese} | 398 | 274 | 510 | | " " 212ºF.{Mr Friese} | 86 | 63.4 | 95.5 | | Flash Point (Close) | 480ºF | 440ºF | 490ºF | | Setting Point. | 36ºF | 25ºF | 65ºF | | Free fatty Acids. | .22% | .34% | .17% | | Evaporation on exposure for 1.hr at 370º F.{Mr Friese} | 1.4% | 1.45% | 1.2% | Any oil which will satisfy the above should be satisfactory. Mcr. | ||