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).
Query regarding the performance benefits of using Discoll fuel in Bentley Trials Cars and R-R cars.
| Identifier | ExFiles\Box 151\1\ scan0002 | |
| Date | 2nd February 1939 | |
| 1282 S/W. BK{A. Birkett - Commercial Manager} (struck through) c. to Rm.{William Robotham - Chief Engineer} Bentley (underlined) Cx{Major Len W. Cox - Advertising Manager}3/KW2.2.39. Will you please let us know if there would be any advantage in performance to be gained by using a fuel such as Discoll in our Trials Cars. I am given to understand that there is a noticeable difference by way of benefit, but would be glad to have an official opinion on the subject. My feeling is that if there is no objection we ought to use a fuel which gives us the best results on Trials Cars. At present we are using the ordinary straight No.1. petrol. At the same time perhaps you would answer this question similarly in respect of R-R cars. Cx.{Major Len W. Cox - Advertising Manager} | ||