All of mine have some sort of label or another. In fact, my Oldsmobile Custom Cruiser station wagon, even has it in the dash gauge cluster, underneath the fuel gauge. It says, "Diesel Fuel Only" and it says the same thing in the filler area behind the fuel door.

When I was like 17 or something, I worked at U-Haul. We used to constantly get customer service phone calls from U-Haul Road-Side, and such, about customers having put gas in the Diesel trucks. They'd be lucky to get out of the gas station parking lot. The they would call us yelling and screaming as if it were our fault or something. U-Haul trucks all have it written everywhere you look on them. Filler area, visor, operators manual, dash board, and even in some other odd U-Haul installed places. People still did it all the time though.

I don't know what kind of damage it does internally but the trucks were very often gone for repairs for long periods of time. I think because they'd fix them and just get them on the road. Some never returned to our location at all.

Trucky

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