Never seen those scribbles before
But once I was in a third world country and I had to stop and gas up my rental car
It was a bad part of the world so I was more looking at my surroundings than at the gas cap
After I got out of there it didn't take long for the car to start running like crap
Lack of power, stumbling, stalling
I barely made it back to camp, and when I checked it out the next day I noticed the engine looked weird, like all the spark plugs were missing
Then when I looked at the gas cap it said 'diesel' on it
Turned out some third world engineer had put a farm engine in a rental car!