HISTORY And the rest is still unwritten. 1930's El WithrowDuring the rapid growing automobile industry, El Withrow was supplying factory-fill lubricants to the Los Angeles Cadillac plant. 1950'sThe facilities proximity to the advancing aerospace industry, made it the premier metalworking fluid producer on the West Coast. 1980's CastrolCastrol Industrial takes ownership. 2010's PPFHasco Oil acquired the property from Castrol Industrial and transformed it into Pacific Precision Formulators.A BRIEF SUMMARYRead more about our company founders at Hasco Oil.