During a debate on oil and petrol cans on another site, I posted these pictures of my Flimsy. The MT80 came into question and one guy suggested that it was for 80 weight oil??? I'm quite sure Flimsy's weren't used for oil and I'm absolutely convinced it's the octane rating.
You can actually make out the 80 on some of the cans in the stack were the girls are filling up. But also interestingly the flash on the girl and bike appear to be SHAEF (Supreme Headquarters Allied Expeditionary Force) Ron