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).
Petrol consumption tests for different fuel types on vehicle 1188.
| Identifier | ExFiles\Box 147\5\ scan0008 | |
| Date | 12th May 1910 | |
| Petrol X 459 (2300) s800 CONSUMPTION TESTS ON 1188 (PETROL) With Carless capel - .700 sp.{Mr Spinney}g. - 17 m.p.g. " "Shell" - .720 sp.{Mr Spinney}g. - 15¾ m.p.g. " "Mex" - .710 sp.{Mr Spinney}g. - 16 m.p.g. Taken by Lee-Evans Apl'10 [signature] 12-5-10 | ||