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).
Performance comparison of 20 HP cars using various brands of petrol.
Identifier | ExFiles\Box 20\4\ Scan034 | |
Date | 24th December 1924 guessed | |
COMPARISON OF PERFORMANCE ON 20 HP. CARS - 4-G-11 - 3-G-11 AND 79-AO.(10.000 MILES TEST CAR) - WITH VARIOUS BRANDS OF PETROL. Chassis No. | Test. | Shell No.1. | Shell Mex. | Red Line. --- | --- | --- | --- | --- 4-G-11. | Time on hill in secs. | 117 | 117.5 | 114 " | Max. speed on hill. M.P.H. | 39 | 39 | 40 " | Min. speed on hill. M.P.H. | 15 | 15.5 | 16.5 3-G-11. | Time on hill in secs. | 109.5 | 110.5 | 110 " | Max. speed on hill. M.P.H. | 39.75 | 38.75 | 39.5 " | Min. speed on hill. M.P.H. | 19.75 | 19 | 19.5 79-AO. | Time on hill in secs. | 124 | 133 | 120 " | Max. speed on hill. M.P.H. | 39 | 38.5 | 38.25 " | Min. speed on hill. M.P.H. | 14 | 11 | 15 MAXIMUM SPEED ON LEVEL IN 700 YDS. STARTING AT 40 M.P.H. AVERAGE OF TESTS. 4-G-11. | Speed test. | 55.6 | 55.9 | 55.1 3-G-11. | " " | 54.8 | 53.75 | 54.25 79-AO. | " " | 55 | 54.5 | 55.5 | ||