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).
Promotional leaflet for K-W Graphite motor oil, with graphs demonstrating its heat resistance.
| Identifier | ExFiles\Box 145\3\ scan0047 | |
| Date | 31th July 1936 guessed | |
| GRAPHIC' PROOF K-W CREATES GOODWILL AND MAKES FOR GREATER PROFIT K.W. Graphite has the unqualified approval of motor manufacturers, lubrication and mechanical engineers. It is a quality product giving the user better petrol mileage, reduced oil consumption, at the same time protecting the motor from excessive wear. —It will pay you to introduce K.W. GRAPHITE to your customers For further particulars write to E.{Mr Elliott - Chief Engineer} P. BARRUS LTD., 35-37, Upper Thames Street, London, E.C.4. Text on the can: 14 FLUID OZ REDUCES FRICTION - REDUCES HEAT - REDUCES WEAR SAVES PETROL - SAVES OIL K-W COLLOIDAL MOTOR GRAPHITE Reduces friction FOR ALL INTERNAL COMBUSTION ENGINES UPPER CYLINDER LUBRICANT MANUFACTURED BY K.W. GRAPHITE CORP KANSAS CITY MO., U.S.A. MADE IN U.S.A Text on the bottom graph (upside down): K.W. RESISTS HEAT UP TO 7,500° F.{Mr Friese} COMBUSTION TEMPERATURE ORDINARY OIL BURNS AT 600° F.{Mr Friese} | ||