Oil/Grease near fuel injector

[mitsumi]

Hi there,

I noticed something from around the fuel injector which i didnt saw before.

Thought it was rust at first but when i slipped my finger its like oily dirt around it but only on one of the injectors, the other ones doesnt have.

Im just wondering if it has any indications or what, but the engine runs fine.

Is this normal and not something to worry about?



and if you noticed around the fuel injector its the same.