So here is an original metal Texaco sign in aged as is condition see pics measuring about 24 by 40. Sign was never used but does have some rust chipping damage from the many years in storage. The original Texaco Marfak signs from the 1940-50’s measured 24 by 40 any other sizes are cheap reproductions! One of the more forgotten sub-brands of a major oil company is Marfak Lubrication. Marfak was the lube brand of Texaco and Caltex. If Havoline was the actual oil, Marfak was the process. I can’t say it was actually used much as a verb, as I never heard the word used; I only saw it above station bays. But the slogan was Let Us Marfak Your Car. Us folks of a certain age know Marfak from its appearance above the service bays on classic white porcelain clad Texaco stations, of which there were a significant number as late as the 1980s.