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).
Test log sheet for chassis cold starting performance using Castrol AA and Shell Light oils at various temperatures.
| Identifier | ExFiles\Box 151\3\ scan0341 | |
| Date | 10th December 1937 guessed | |
| 5.B.IV CHASSIS. COLD STARTING TESTS. CASTROL AA. {D. Abbot Anderson} Room Temp. Oil in Sump. Remarks. Starts every 20-30 mins. -3°F 30°F 5 secs. threw out 2 " started. R.P.M. 100 -8° 23°F 5 " threw out 2 " " 2 " started R.P.M. 100 -11° 14°F 5 secs. threw out 2 " " 2 " started & picked up evenly on all six after 2-3 secs. R.P.M. 70-75 -10° 8°F 6 secs. threw out 3 " " " 3 " " " 3 " started & picked up evenly on all six after 7-8 secs. R.P.M. 45-50 SHELL LIGHT. -5°F 32°F 6 secs. fired and stopped 2 " Started & picked up evenly after 4 secs. R.P.M. 60-70 -11° 14°F 11 secs. threw out 3 " " " 3 " " " 3 " started R.P.M. 40-50 -11° 8°F 15 secs. threw out 4 " " " 4 " " " 4 " " " 3 " started & picked up evenly after 5-6 secs. R.P.M. 40 | ||