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).
Mileage report on 'XXL' oil testing in experimental department cars.
| Identifier | ExFiles\Box 144\1\ scan0200 | |
| Date | 24th October 1932 | |
| -2- HS{Lord Ernest Hives - Chair}/Lid.{A. J. Lidsey}7/24.10.32.contd Up to date the following mileage has been completed on 'XXL' oil in Exptl Dept cars and no drawbacks have been encountered. 22-EX. (Gear box) - 7656 miles. 20-EX. (Gear box) - 4,200 miles. 19-EX. (Gear box) - 1526 miles. In addition all Exh 2/25HP cars are now being run with 'XXL' in the gear box (synchromesh) and rear axle, we should therefore soon be in a position to recommend this oil as an alternative to Price's Amber 'A'. HS{Lord Ernest Hives - Chair}/A.J.Lidsey. | ||