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).
Letter to Lodge Plugs Limited providing guidance on running-in procedures for a new car.
| Identifier | ExFiles\Box 90\4\ scan0036 | |
| Date | 25th April 1936 | |
| X761 7 Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}9/KW. 25th April, 1936. B. Hopps, Esq., Lodge Plugs Limited, RUGBY. Dear Mr. Hopps, Thank you for your letter of the 21st April. Generally speaking, it is not necessary to run our cars in. Nevertheless, I would not recommend that you indulge in prolonged bursts of speed above 4000 revs. until the car has done about 500 miles. It might be an advantage to use upper cylinder lubricant for the first few thousand miles. Castrol seems fairly satisfactory. I hope you will be satisfied with the chassis. Yours sincerely, | ||