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).
Graph comparing the viscosity of 'Prices Motorine C' and 'Lovejoy Oil' at various temperatures.
| Identifier | ExFiles\Box 144\1\ scan0152 | |
| Date | 27th May 1926 guessed | |
| VISCOSITY COMPARISON PRICES MOTORINE C AND LOVEJOY OIL TEMPERATURE IN °C TIME OF EFFLUX SECS. Prices MOTORINE C Lovejoy Oil LIMITS OF WORKING TEMP FOR BRITISH ISLES | ||