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).
Specifications for 'ILO' R.R. Motor Oil and 'ILO' S.H. Gear Oil.
| Identifier | ExFiles\Box 77\2\ scan0048 | |
| Date | 1st May 1919 guessed | |
| 'ILO' R.R. MOTOR OIL. Specific Gravity 920 Vis. @ 70°F 1150 " Redwood. " " 140°F 154 " " " " 200°F 63 " " Flash Point 397°F Close Test. Pensky Marten. Cold Test 28°F 'ILO' S.H. GEAR OIL. Specific Gravity n 929 Vis. @ 200°F 365" Redwood. Flash Point - 545°F.{Mr Friese} Close test. Pensky Marten. | ||