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).
Road tests comparing 'Pynol' motor fuel with Petrol.
| Identifier | ExFiles\Box 32\1\ Scan083 | |
| Date | 15th May 1923 guessed | |
| REPORT ON ROAD TESTS OF "PYNOL" MOTOR FUEL. --- These tests were carried out on a 40/50 R-R Car (49-GB) with the object of comparing the results obtained by using "Pynol" with those obtained by using Petrol. These tests may be divided into three sections :- (1) Acceleration. (2) Consumption. (3) Hill climbing. (1) ACCELERATION. --- | Change of speed from :- | PETROL | | PYNOL | | |---|---|---|---|---| | | Time secs. | Acen. ft. sec | Time secs. | Acen. ft. sec | | 10 to 20 m.p.h. | 5.935 | 2.48 | 7.0 | 2.10 | | 20 " 30 m.p.h. | 5.935 | 2.48 | 6.817 | 2.15 | | 30 " 40 m.p.h. | 7.600 | 1.93 | 8.50 | 1.72 | | 40 " 50 m.p.h. | 12.250 | 1.19 | 19.45 | 0.75 | (2) CONSUMPTION. --- PETROL. | Average speed. | Consumption. | |---|---| | 22.9 | 16.6 m.p.g. | | 32.2 | 15.8 " | PYNOL. | Average speed. | Consumption. | |---|---| | 22.3 | 16.4 m.p.g. | | 30.0 | 16.2 " | contd:- | ||