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).
Inquiry requesting the results of a 10,000-mile test on a Phantom III vehicle using Price's oil.
| Identifier | ExFiles\Box 91\2\ scan0051 | |
| Date | 26th June 1937 | |
| S/W Rm{William Robotham - Chief Engineer}/Gry.{Shadwell Grylls} 300a C8/C26.6.37 Re PRICE'S OIL. In your Rm{William Robotham - Chief Engineer}/Gry{Shadwell Grylls}2/R5.4.37 you mentioned that you would make a point of running the next 10,000 miles P.III on Price's oil. I shall be glad to know if this has now been done and if so what was found to be the result. C. | ||