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).
Laboratory analysis comparing the chemical composition of Redline and Shell-mex motor spirits.
| Identifier | ExFiles\Box 20\6\ Scan074 | |
| Date | 16th January 1925 | |
| COPY. Hs.{Lord Ernest Hives - Chair} for Mr. Robotham. H1/EA16.1.25. Laboratory. RE. SAMPLE OF REDLINE MOTOR SPIRIT AND SHELL-MEX MOTOR SPIRIT. Analysis. Redline. Shell-mex. Olefines and di-olefines -------- 6.0% 5.0% Aromatic hydro-carbons -------- 7.0% 15.6% Paraffins and cyclo-paraffins -- 87.0% 79.4% H1. | ||