Connie is using/losing coolant.
She is a 2001 C70 2.4T auto.

Complete expasion tank in 365 miles.

No visable signs of a leak in the engine bay or on the floor.

Photo is of the oil filler cap and top of the filler point.

Is it the head gasket?

Other symptoms/issues
When cruising the temp gauge sits at about 1/4 of the way up the gauge.
In traffic it never goes above 1/2 way up the gauge.
After being in traffic and then cruising temp drops back to 1/4 on the gauge.
Very little heat from the heater.

Thoughts and comment appreciated.

One last question - Where is the dipstick for the auto fluid level? Darned if I can see one and no owners manual.

Steve