DURATION Lifetime Engine Treatment / For gasoline / and diesel engines, "[copyright symbol] 1981, Duration Inc. Houston, TX 77056" on back near bottom. 1 quart, 'brushed steel' background with dark blue, red and black design. Folded seam, tin can. Logo/Name front, extensive text back. Top has purple 'seal' on white circle including "API SERVICE CLASSIFICATION SF-CC-CD" - also has embossed "A 103."

I'm no longer listed all the can company details - nobody seems to care over 30 years since these were collected. If you care, write me a message and I'll let you know. Photos: Front, front w/top, side w/seam, back, 2 small dent, ID block (back), top. bottom. 

Based on experience - and online ads, this is at best, scarce. My pricing is strictly a guess; if I'm too low, you win.  MAKE AN OFFER - all that can happen is me saying "No thanks!" If you want or need more information, don't hesitate to ask.  My father and I haven't been active in the hobby for years (my first oil can and gas pump / gas pump globe collection was in the 1950s) and I'm having to disperse the last of my collection - since the 1990s. I will consider reasonable offers - so feel free!