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 in a 40/50 car.
| Identifier | WestWitteringFiles\J\May1923\ Scan63 | |
| 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. PETROL. PYNOL. Change of speed from :- 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 18.2 m.p.g. 30.0 16.2 " contd:- | ||