According to the current condition, as shown in the pictures, it looks like the engine of your car is getting weaker. I suggest you to start using 10w40 or even 20w50 of Havoline if you feel the need and by that I mean to say that if you use 10w40 and your car is still reducing the oil, then the best solution, for now, is to switch to 20w50.
If the issue still persists, then you need to consult some expert mechanic for overhauling the engine of your car.
I might be wrong, but according to my knowledge, I'm just suggesting these few things based on the details that you've provided.
The rest is your choice.
I hope it helps.