1948 Pure Oil Company "Facts for Field Men" Technical Service Bulletins Ephemera

This listing features a collection of original Pure Oil Company Facts for Field Men technical service bulletins and related ephemera from 1948. This comprehensive set includes multiple bulletins covering a range of automotive and industrial topics pertinent to sales representatives and bulk plant distributors of the era. Dates on the bulletins span from February to May 1948.  Key topics covered include: *   **Lubricating Oil Preference:** Discussions on automotive transmission and differential lubricants, as well as heavy-duty oils for aircraft. *   **Technical Information:** Detailed insights into deposits on zinc alloy castings (carburetor and fuel pump), and the handling of low flash point materials for heating oils. *   **Automotive Maintenance:** Information on mechanical grease packers for truck wheel bearings and lubrication recommendations for new 1948 Ford trucks.