Mazda Repair Questions? Ask Mechanics for Answers ASAP
220000km is fair amount, but you may be able to reduce or stop the consumption with a product like Nulon E10 or E20.
I have used Nulon and Slick50 in many cars for many years with good results.
Certainly worth a go.
What oil is in the engine now?
I hope my advice has been of assistance to you.
Have you had any success with your car?