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).
Laboratory report comparing the properties and test results of various oils.
| Identifier | ExFiles\Box 32\4\ Scan176 | |
| Date | 1st October 1924 guessed | |
| Hs.{Lord Ernest Hives - Chair} By.{R.W. Bailey - Chief Engineer} BP. X1588 H17/EF23924. Laboratory. Name of Oil. Cold Set. Specific Gravity. Viscosity. 8°C. 57°C. 99°C. *Oxidation Test. *Coke Test. -------------------------------------------------------------------------------------------------------------------------------------------------- Adcol 3 - 4. 13.0°F.{Mr Friese} 0.907. 7023 secs.) 236 secs) 74 secs) 0.057%. 0.43% Vacuum BB. 30.0°F.{Mr Friese} 0.910. set. 223 " 73 " 0.15% 0.67% Castrol C. 21.5°F.{Mr Friese} 0.935. 57623 " (very thick) 205. " 74 " 0.23% 0.58% Motorine A.{Mr Adams} 27.5°F.{Mr Friese} 0.916 too thick to test, but not quite set. 252 " 67 " 0.14% 0.76% *These should be as low as possible. I understand that Hs.{Lord Ernest Hives - Chair} is letting me have a sample of winter and a sample of summer Huile-de-Luxe, which I will test in a similar way. Flash-points can be given if desired, but I do not think that these are very important. H1. HC | ||