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 report on chassis 1136 engine lubrication and power performance following modifications to pistons and oil pipes.
| Identifier | ExFiles\Box 16\1\ Scan004 | |
| Date | 22th September 1909 | |
| R.R 148 (20 H) (F 148. 17.6.09) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 103. X.140 1400 1136 chassis without annulus recessed round the pistons Engine sufficiently lubricated for running at 1500 revs on dynamometer but no smoke at 660 revs with .091 extra oil pipes attached for experiment oil was apparent on edge of pistons ½" after running ENGINE VERY FREE AND GOOD POWER Reported by Lowe - 22-9-09 | ||