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).
Referencing a list of oil types used in present Rolls-Royce and Bentley Trials Cars.
| Identifier | ExFiles\Box 144\3\ scan0143 | |
| Date | 14th January 1937 | |
| S/W. Rm.{William Robotham - Chief Engineer} 1220 SWDL{Len H. Swindell} PLEASE NOTE SWDL{Len H. Swindell} Wtles Oil Consumption Rm.{William Robotham - Chief Engineer} Cx{Major Len W. Cox - Advertising Manager}5/KW14.1.37. Reference Rm{William Robotham - Chief Engineer}7/Rll.1.37, here is a list of present Trials Cars both Rolls-Royce and Bentley showing what oil is being used in the engines. Att: RC{R. Childs}5/L/13.1.37. Cx.{Major Len W. Cox - Advertising Manager} dwd | ||