1964 Castrol Motor Oil - Protect Your Investment - Vintage Ad

This original 1964 magazine ad is untrimmed from its master 8.5 x 11" page and measures @ 6 x 8" to showcase Castrol Motor Oil being the choice of professional race car teams.  Even more reason to use it in your commuter vehicle.  Protect Your Investment.  There is a small water stain in the lower left corner of the ad, contributing to the patina of the piece.