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).
Log tracking oil consumption and miles per gallon for a 25/30 HP vehicle, chassis GUL 82.
| Identifier | ExFiles\Box 142\3\ scan0057 | |
| Date | 1st July 1932 guessed | |
| Rm{William Robotham - Chief Engineer} 1204 Re: Oil. Consumption. GUL 82- 25/30 h.p. MAY. Speedo reading. oil added. 1497. 7 pts. 2343. 2 qts. 2615. 1 qrt. 2735. 3 pts. 2933. 1 qrt. 3302. 1 qrt. 3862. 1 qrt. 3995. 3 pts. Miles for month - 2925 to 3 galls 1 pt. = 936 m.p.g. JUNE. 5170. 3 qts. 5449. 1 pt. 5717. 1 qrt. 5923. 5 pts. 5984. 1 qrt. 6250. 1 pt. 6501. 5 pts. 6735. 2 qts. 6742. 1 qrt. 7099. 1 qrt. 7562. 1 qrt. Miles for month 3567: to 4 galls = 888 m.p.g. JULY. 7900. 1 qrt. 8202. 2 qts. 8452. 1 qrt. 8604. 1 qrt. 9138. 2 qts. 9594. 2 qts. 9909. 1 qrt. Miles for month 2066. to 2 galls 2 qrts = 826 m.p.g. P.T.O. | ||