I have a 2000 Corolla with 200k miles. From the 171k mile mark to the present 200k, oil consumption went from 1 qt/1500 miles to 1 qt/500 miles.
I performed an oil and filter change and added one bottle of A-RX. I'm now 900 miles into the first treatment. Because the engine is consuming oil, I assume it is also consuming A- RX. Does this mean that I have to keep adding A-RX when I top up the oil?