Original oil and gas trade magazine vintage ad for SUN OIL COMPANY of Philadelphia, PA. Eliminates Costly Corrosion Problem. Textile manufacturer changes to a Job Proved Sun Processing Oil and Cuts Production Costs. SUNOCO Petroleum Products. Unique 1948 old petroleum refining industrial lubrication magazine advertisement. (The scan shows a slight pink tint that is not on the actual ad.) Approximate size 8 x 11 inches.