OP - I'm not seeing a picture.
I popped mine lid off a day or 2 ago just to see if it was dirty. It was not. Gaskets were fine. However, there was a dragonfly (dead) in there about the size and shape of a B-52 bomber. The dragonfly still had a smile on his face, easy to see the smile he was so big.
He was so big in fact, he was cutting the airflow off to the engine. Now I'm betting I get down the drag strap AT LEAST 2 seconds quicker!
View my fuel log 2020 Mirage ES 1.2 manual: 42.4 mpg (US) ... 18.0 km/L ... 5.5 L/100 km ... 50.9 mpg (Imp)