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).
From the Paris Showrooms to Derby regarding the equivalence of Castrol 'XXL' gear oil to Prices Amber 'A'.
| Identifier | ExFiles\Box 32\3\ Scan208 | |
| Date | 20th October 1931 | |
| Copy. To 'By' Derby. (Paris Showrooms) GY/EWP{Mr Punt}15/MLG.20.10.31. Some time ago we submitted to the Castrol people in Paris a sample of Prices Amber 'A' gear oil with the request they would let us know whether they had an oil similar, and they now inform us that their type 'XXL' is equivalent to the Prices Amber 'A'. We should be glad before taking any further action in this matter, if you would please say whether you are in agreement. GY. | ||